PUCCH cell switching and CSI reporting

ABSTRACT

A wireless device determines first timings that a first cell and second timings that a second cell is the applicable cell for PUCCH transmission. The wireless device may transmit a first scheduled CSI report in a first report timing via the first cell based on the first report timing being within the first timings. The wireless device may drop a second scheduled CSI report, scheduled for transmission in a second report timing via the first cell, based on the second report timing being within the second timings.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No.63/287,324, filed Dec. 8, 2021, which is hereby incorporated byreference in its entirety.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A and FIG. 1B show examples of mobile communications systems inaccordance with several of various embodiments of the presentdisclosure.

FIG. 2A and FIG. 2B show examples of user plane and control planeprotocol layers in accordance with several of various embodiments of thepresent disclosure.

FIG. 3 shows example functions and services offered by protocol layersin a user plane protocol stack in accordance with several of variousembodiments of the present disclosure.

FIG. 4 shows example flow of packets through the protocol layers inaccordance with several of various embodiments of the presentdisclosure.

FIG. 5A shows example mapping of channels between layers of the protocolstack and different physical signals in downlink in accordance withseveral of various embodiments of the present disclosure.

FIG. 5B shows example mapping of channels between layers of the protocolstack and different physical signals in uplink in accordance withseveral of various embodiments of the present disclosure.

FIG. 6 shows example physical layer processes for signal transmission inaccordance with several of various embodiments of the presentdisclosure.

FIG. 7 shows examples of RRC states and RRC state transitions inaccordance with several of various embodiments of the presentdisclosure.

FIG. 8 shows an example time domain transmission structure in NR bygrouping OFDM symbols into slots, subframes and frames in accordancewith several of various embodiments of the present disclosure.

FIG. 9 shows an example of time-frequency resource grid in accordancewith several of various embodiments of the present disclosure.

FIG. 10 shows example adaptation and switching of bandwidth parts inaccordance with several of various embodiments of the presentdisclosure.

FIG. 11A shows example arrangements of carriers in carrier aggregationin accordance with several of various embodiments of the presentdisclosure.

FIG. 11B shows examples of uplink control channel groups in accordancewith several of various embodiments of the present disclosure.

FIG. 12A, FIG. 12B and FIG. 12C show example random access processes inaccordance with several of various embodiments of the presentdisclosure.

FIG. 13A shows example time and frequency structure of SSBs and theirassociations with beams in accordance with several of variousembodiments of the present disclosure.

FIG. 13B shows example time and frequency structure of CSI-RSs and theirassociation with beams in accordance with several of various embodimentsof the present disclosure.

FIG. 14A, FIG. 14B and FIG. 14C show example beam management processesin accordance with several of various embodiments of the presentdisclosure.

FIG. 15 shows example components of a wireless device and a base stationthat are in communication via an air interface in accordance withseveral of various embodiments of the present disclosure.

FIG. 16 shows an example medium access control (MAC) control element(CE) in accordance with several of various embodiments of the presentdisclosure.

FIG. 17 shows an example time/timing pattern for physical uplink controlchannel (PUCCH) carrier switching in accordance with several of variousembodiments of the present disclosure.

FIG. 18 shows an example time/timing pattern for physical uplink controlchannel (PUCCH) carrier switching in accordance with several of variousembodiments of the present disclosure.

FIG. 19 shows example information elements in accordance with several ofvarious embodiments of the present disclosure.

FIG. 20 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 21 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 22 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 23 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 24 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 25 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 26 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 27 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 28 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 29 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 30 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 31 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 32 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 33 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 34 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 35 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 36 shows an example process in accordance with several of variousembodiments of the present disclosure.

FIG. 37 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

FIG. 38 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure.

DETAILED DESCRIPTION

The exemplary embodiments of the disclosed technology enable channelstate information (CSI) reporting. The exemplary disclosed embodimentsmay be implemented in the technical field of wireless communicationsystems. More particularly, the embodiments of the disclosed technologymay enhance channel state information reporting when the wireless deviceis configured with physical uplink control channel (PUCCH) cellswitching.

The devices and/or nodes of the mobile communications system disclosedherein may be implemented based on various technologies and/or variousreleases/versions/amendments of a technology. The various technologiesinclude various releases of long-term evolution (LTE) technologies,various releases of 5G new radio (NR) technologies, various wirelesslocal area networks technologies and/or a combination thereof and/oralike. For example, a base station may support a given technology andmay communicate with wireless devices with different characteristics.The wireless devices may have different categories that define theircapabilities in terms of supporting various features. The wirelessdevice with the same category may have different capabilities. Thewireless devices may support various technologies such as variousreleases of LTE technologies, various releases of 5G NR technologiesand/or a combination thereof and/or alike. At least some of the wirelessdevices in the mobile communications system of the present disclosuremay be stationary or almost stationary. In this disclosure, the terms“mobile communications system” and “wireless communications system” maybe used interchangeably.

FIG. 1A shows an example of a mobile communications system 100 inaccordance with several of various embodiments of the presentdisclosure. The mobile communications system 100 may be, for example,run by a mobile network operator (MNO) or a mobile virtual networkoperator (MVNO). The mobile communications system 100 may be a publicland mobile network (PLMN) run by a network operator providing a varietyof service including voice, data, short messaging service (SMS),multimedia messaging service (MMS), emergency calls, etc. The mobilecommunications system 100 includes a core network (CN) 106, a radioaccess network (RAN) 104 and at least one wireless device 102.

The CN 106 connects the RAN 104 to one or more external networks (e.g.,one or more data networks such as the Internet) and is responsible forfunctions such as authentication, charging and end-to-end connectionestablishment. Several radio access technologies (RATs) may be served bythe same CN 106.

The RAN 104 may implement a RAT and may operate between the at least onewireless device 102 and the CN 106. The RAN 104 may handle radio relatedfunctionalities such as scheduling, radio resource control, modulationand coding, multi-antenna transmissions and retransmission protocols.The wireless device and the RAN may share a portion of the radiospectrum by separating transmissions from the wireless device to the RANand the transmissions from the RAN to the wireless device. The directionof the transmissions from the wireless device to the RAN is known as theuplink and the direction of the transmissions from the RAN to thewireless device is known as the downlink. The separation of uplink anddownlink transmissions may be achieved by employing a duplexingtechnique. Example duplexing techniques include frequency divisionduplexing (FDD), time division duplexing (TDD) or a combination of FDDand TDD.

In this disclosure, the term wireless device may refer to a device thatcommunicates with a network entity or another device using wirelesscommunication techniques. The wireless device may be a mobile device ora non-mobile (e.g., fixed) device. Examples of the wireless deviceinclude cellular phone, smart phone, tablet, laptop computer, wearabledevice (e.g., smart watch, smart shoe, fitness trackers, smart clothing,etc.), wireless sensor, wireless meter, extended reality (XR) devicesincluding augmented reality (AR) and virtual reality (VR) devices,Internet of Things (IoT) device, vehicle to vehicle communicationsdevice, road-side units (RSU), automobile, relay node or any combinationthereof. In some examples, the wireless device (e.g., a smart phone,tablet, etc.) may have an interface (e.g., a graphical user interface(GUI)) for configuration by an end user. In some examples, the wirelessdevice (e.g., a wireless sensor device, etc.) may not have an interfacefor configuration by an end user. The wireless device may be referred toas a user equipment (UE), a mobile station (MS), a subscriber unit, ahandset, an access terminal, a user terminal, a wireless transmit andreceive unit (WTRU) and/or other terminology.

The at least one wireless device may communicate with at least one basestation in the RAN 104. In this disclosure, the term base station mayencompass terminologies associated with various RATs. For example, abase station may be referred to as a Node B in a 3G cellular system suchas Universal Mobile Telecommunication Systems (UMTS), an evolved Node B(eNB) in a 4G cellular system such as evolved universal terrestrialradio access (E-UTRA), a next generation eNB (ng-eNB), a Next GenerationNode B (gNB) in NR and/or a 5G system, an access point (AP) in Wi-Fiand/or other wireless local area networks. A base station may bereferred to as a remote radio head (RRH), a baseband unit (BBU) inconnection with one or more RRHs, a repeater or relay for coverageextension and/or any combination thereof. In some examples, all protocollayers of a base station may be implemented in one unit. In someexamples, some of the protocol layers (e.g., upper layers) of the basestation may be implemented in a first unit (e.g., a central unit (CU))and some other protocol layer (e.g., lower layers) may be implemented inone or more second units (e.g., distributed units (DUs)).

A base station in the RAN 104 includes one or more antennas tocommunicate with the at least one wireless device. The base station maycommunicate with the at least one wireless device using radio frequency(RF) transmissions and receptions via RF transceivers. The base stationantennas may control one or more cells (or sectors). The size and/orradio coverage area of a cell may depend on the range that transmissionsby a wireless device can be successfully received by the base stationwhen the wireless device transmits using the RF frequency of the cell.The base station may be associated with cells of various sizes. At agiven location, the wireless device may be in coverage area of a firstcell of the base station and may not be in coverage area of a secondcell of the base station depending on the sizes of the first cell andthe second cell.

A base station in the RAN 104 may have various implementations. Forexample, a base station may be implemented by connecting a BBU (or a BBUpool) coupled to one or more RRHs and/or one or more relay nodes toextend the cell coverage. The BBU pool may be located at a centralizedsite like a cloud or data center. The BBU pool may be connected to aplurality of RRHs that control a plurality of cells. The combination ofBBU with the one or more RRHs may be referred to as a centralized orcloud RAN (C-RAN) architecture. In some implementations, the BBUfunctions may be implemented on virtual machines (VMs) on servers at acentralized location. This architecture may be referred to as virtualRAN (vRAN). All, most or a portion of the protocol layer functions(e.g., all or portions of physical layer, medium access control (MAC)layer and/or higher layers) may be implemented at the BBU pool and theprocessed data may be transmitted to the RRHs for further processingand/or RF transmission. The links between the BBU pool and the RRHs maybe referred to as fronthaul.

In some deployment scenarios, the RAN 104 may include macrocell basestations with high transmission power levels and large coverage areas.In other deployment scenarios, the RAN 104 may include base stationsthat employ different transmission power levels and/or have cells withdifferent coverage areas. For example, some base station may bemacrocell base stations with high transmission powers and/or largecoverage areas and other base station may be small cell base stationswith comparatively smaller transmission powers and/or coverage areas. Insome deployment scenarios, a small cell base station may have coveragethat is within or has overlap with coverage area of a macrocell basestation. A wireless device may communicate with the macrocell basestation while within the coverage area of the macrocell base station.For additional capacity, the wireless device may communicate with boththe macrocell base station and the small cell base station while in theoverlapped coverage area of the macrocell base station and the smallcell base station. Depending on their coverage areas, a small cell basestation may be referred to as a microcell base station, a picocell basestation, a femtocell base station or a home base station.

Different standard development organizations (SDOs) have specified, ormay specify in future, mobile communications systems that have similarcharacteristics as the mobile communications system 100 of FIG. 1A. Forexample, the Third-Generation Partnership Project (3GPP) is a group ofSDOs that provides specifications that define 3GPP technologies formobile communications systems that are akin to the mobile communicationssystem 100. The 3GPP has developed specifications for third generation(3G) mobile networks, fourth generation (4G) mobile networks and fifthgeneration (5G) mobile networks. The 3G, 4G and 5G networks are alsoknown as Universal Mobile Telecommunications System (UMTS), Long TermEvolution (LTE) and 5G system (5GS), respectively. In this disclosure,embodiments are described with respect to the RAN implemented in a 3GPP5G mobile network that is also referred to as next generation RAN(NG-RAN). The embodiments may also be implemented in other mobilecommunications systems such as 3G or 4G mobile networks or mobilenetworks that may be standardized in future such as sixth generation(6G) mobile networks or mobile networks that are implemented bystandards bodies other than 3GPP. The NG-RAN may be based on a new RATknown as new radio (NR) and/or other radio access technologies such asLTE and/or non-3GPP RATs.

FIG. 1B shows an example of a mobile communications system 110 inaccordance with several of various embodiments of the presentdisclosure. The mobile communications system 110 of FIG. 1B is anexample of a 5G mobile network and includes a 5G CN (5G-CN) 130, anNG-RAN 120 and UEs (collectively 112 and individually UE 112A and UE112B). The 5G-CN 130, the NG-RAN 120 and the UEs 112 of FIG. 1B operatesubstantially alike the CN 106, the RAN 104 and the at least onewireless device 102, respectively, as described for FIG. 1A.

The 5G-CN 130 of FIG. 1B connects the NG-RAN 120 to one or more externalnetworks (e.g., one or more data networks such as the Internet) and isresponsible for functions such as authentication, charging andend-to-end connection establishment. The 5G-CN has new enhancementscompared to previous generations of CNs (e.g., evolved packet core (EPC)in the 4G networks) including service-based architecture, support fornetwork slicing and control plane/user plane split. The service-basedarchitecture of the 5G-CN provides a modular framework based on serviceand functionalities provided by the core network wherein a set ofnetwork functions are connected via service-based interfaces. Thenetwork slicing enables multiplexing of independent logical networks(e.g., network slices) on the same physical network infrastructure. Forexample, a network slice may be for mobile broadband applications withfull mobility support and a different network slice may be fornon-mobile latency-critical applications such as industry automation.The control plane/user plane split enables independent scaling of thecontrol plane and the user plane. For example, the control planecapacity may be increased without affecting the user plane of thenetwork.

The 5G-CN 130 of FIG. 1B includes an access and mobility managementfunction (AMF) 132 and a user plane function (UPF) 134. The AMF 132 maysupport termination of non-access stratum (NAS) signaling, NAS signalingsecurity such as ciphering and integrity protection, inter-3GPP accessnetwork mobility, registration management, connection management,mobility management, access authentication and authorization andsecurity context management. The NAS is a functional layer between a UEand the CN and the access stratum (AS) is a functional layer between theUE and the RAN. The UPF 134 may serve as an interconnect point betweenthe NG-RAN and an external data network. The UPF may support packetrouting and forwarding, packet inspection and Quality of Service (QoS)handling and packet filtering. The UPF may further act as a ProtocolData Unit (PDU) session anchor point for mobility within and betweenRATs.

The 5G-CN 130 may include additional network functions (not shown inFIG. 1B) such as one or more Session Management Functions (SMFs), aPolicy Control Function (PCF), a Network Exposure Function (NEF), aUnified Data Management (UDM), an Application Function (AF), and/or anAuthentication Server Function (AUSF). These network functions alongwith the AMF 132 and UPF 134 enable a service-based architecture for the5G-CN.

The NG-RAN 120 may operate between the UEs 112 and the 5G-CN 130 and mayimplement one or more RATs. The NG-RAN 120 may include one or more gNBs(e.g., gNB 122A or gNB 122B or collectively gNBs 122) and/or one or moreng-eNBs (e.g., ng-eNB 124A or ng-eNB 124B or collectively ng-eNBs 124).The general terminology for gNBs 122 and/or an ng-eNBs 124 is a basestation and may be used interchangeably in this disclosure. The gNBs 122and the ng-eNBs 124 may include one or more antennas to communicate withthe UEs 112. The one or more antennas of the gNBs 122 or ng-eNBs 124 maycontrol one or more cells (or sectors) that provide radio coverage forthe UEs 112.

A gNB and/or an ng-eNB of FIG. 1B may be connected to the 5G-CN 130using an NG interface. A gNB and/or an ng-eNB may be connected withother gNBs and/or ng-eNBs using an Xn interface. The NG or the Xninterfaces are logical connections that may be established using anunderlying transport network. The interface between a UE and a gNB orbetween a UE and an ng-eNBs may be referred to as the Uu interface. Aninterface (e.g., Uu, NG or Xn) may be established by using a protocolstack that enables data and control signaling exchange between entitiesin the mobile communications system of FIG. 1B. When a protocol stack isused for transmission of user data, the protocol stack may be referredto as user plane protocol stack. When a protocol stack is used fortransmission of control signaling, the protocol stack may be referred toas control plane protocol stack. Some protocol layer may be used in bothof the user plane protocol stack and the control plane protocol stackwhile other protocol layers may be specific to the user plane or controlplane.

The NG interface of FIG. 1B may include an NG-User plane (NG-U)interface between a gNB and the UPF 134 (or an ng-eNB and the UPF 134)and an NG-Control plane (NG-C) interface between a gNB and the AMF 132(or an ng-eNB and the AMF 132). The NG-U interface may providenon-guaranteed delivery of user plane PDUs between a gNB and the UPF oran ng-eNB and the UPF. The NG-C interface may provide services such asNG interface management, UE context management, UE mobility management,transport of NAS messages, paging, PDU session management, configurationtransfer and/or warning message transmission.

The UEs 112 and a gNB may be connected using the Uu interface and usingthe NR user plane and control plane protocol stack. The UEs 112 and anng-eNB may be connected using the Uu interface using the LTE user planeand control plane protocol stack.

In the example mobile communications system of FIG. 1B, a 5G-CN isconnected to a RAN comprised of 4G LTE and/or 5G NR RATs. In otherexample mobile communications systems, a RAN based on the 5G NR RAT maybe connected to a 4G CN (e.g., EPC). For example, earlier releases of 5Gstandards may support a non-standalone mode of operation where a NRbased RAN is connected to the 4G EPC. In an example non-standalone mode,a UE may be connected to both a 5G NR gNB and a 4G LTE eNB (e.g., ang-eNB) and the control plane functionalities (such as initial access,paging and mobility) may be provided through the 4G LTE eNB. In astandalone of operation, the 5G NR gNB is connected to a 5G-CN and theuser plane and the control plane functionalities are provided by the 5GNR gNB.

FIG. 2A shows an example of the protocol stack for the user plan of anNR Uu interface in accordance with several of various embodiments of thepresent disclosure. The user plane protocol stack comprises fiveprotocol layers that terminate at the UE 200 and the gNB 210. The fiveprotocol layers, as shown in FIG. 2A, include physical (PHY) layerreferred to as PHY 201 at the UE 200 and PHY 211 at the gNB 210, mediumaccess control (MAC) layer referred to as MAC 202 at the UE 200 and MAC212 at the gNB 210, radio link control (RLC) layer referred to as RLC203 at the UE 200 and RLC 213 at the gNB 210, packet data convergenceprotocol (PDCP) layer referred to as PDCP 204 at the UE 200 and PDCP 214at the gNB 210, and service data application protocol (SDAP) layerreferred to as SDAP 205 at the UE 200 and SDAP 215 at the gNB 210. ThePHY layer, also known as layer 1 (L1), offers transport services tohigher layers. The other four layers of the protocol stack (MAC, RLC,PDCP and SDAP) are collectively known as layer 2 (L2).

FIG. 2B shows an example of the protocol stack for the control plan ofan NR Uu interface in accordance with several of various embodiments ofthe present disclosure. Some of the protocol layers (PHY, MAC, RLC andPDCP) are common between the user plane protocol stack shown in FIG. 2Aand the control plan protocol stack. The control plane protocol stackalso includes the RRC layer, referred to RRC 206 at the UE 200 and RRC216 at the gNB 210, that also terminates at the UE 200 and the gNB 210.In addition, the control plane protocol stack includes the NAS layerthat terminates at the UE 200 and the AMF 220. In FIG. 2B, the NAS layeris referred to as NAS 207 at the UE 200 and NAS 227 at the AMF 220.

FIG. 3 shows example functions and services offered to other layers by alayer in the NR user plane protocol stack of FIG. 2A in accordance withseveral of various embodiments of the present disclosure. For example,the SDAP layer of FIG. 3 (shown in FIG. 2A as SDAP 205 at the UE sideand SDAP 215 at the gNB side) may perform mapping and de-mapping of QoSflows to data radio bearers. The mapping and de-mapping may be based onQoS (e.g., delay, throughput, jitter, error rate, etc.) associated witha QoS flow. A QoS flow may be a QoS differentiation granularity for aPDU session which is a logical connection between a UE 200 and a datanetwork. A PDU session may contain one or more QoS flows. The functionsand services of the SDAP layer include mapping and de-mapping betweenone or more QoS flows and one or more data radio bearers. The SDAP layermay also mark the uplink and/or downlink packets with a QoS flow ID(QFI).

The PDCP layer of FIG. 3 (shown in FIG. 2A as PDCP 204 at the UE sideand PDCP 214 at the gNB side) may perform header compression anddecompression (e.g., using Robust Header Compression (ROHC) protocol) toreduce the protocol header overhead, ciphering and deciphering andintegrity protection and verification to enhance the security over theair interface, reordering and in-order delivery of packets anddiscarding of duplicate packets. A UE may be configured with one PDCPentity per bearer.

In an example scenario not shown in FIG. 3 , a UE may be configured withdual connectivity and may connect to two different cell groups providedby two different base stations. For example, a base station of the twobase stations may be referred to as a master base station and a cellgroup provided by the master base station may be referred to as a mastercell group (MCG). The other base station of the two base stations may bereferred to as a secondary base station and the cell group provided bythe secondary base station may be referred to as a secondary cell group(SCG). A bearer may be configured for the UE as a split bearer that maybe handled by the two different cell groups. The PDCP layer may performrouting of packets corresponding to a split bearer to and/or from RLCchannels associated with the cell groups.

In an example scenario not shown in FIG. 3 , a bearer of the UE may beconfigured (e.g., with control signaling) with PDCP packet duplication.A bearer configured with PDCP duplication may be mapped to a pluralityof RLC channels each corresponding to different one or more cells. ThePDCP layer may duplicate packets of the bearer configured with PDCPduplication and the duplicated packets may be mapped to the differentRLC channels. With PDCP packet duplication, the likelihood of correctreception of packets increases thereby enabling higher reliability.

The RLC layer of FIG. 3 (shown in FIG. 2A as RLC 203 at the UE side andRLC 213 at the gNB side) provides service to upper layers in the form ofRLC channels. The RLC layer may include three transmission modes:transparent mode (TM), Unacknowledged mode (UM) and Acknowledged mode(AM). The RLC layer may perform error correction through automaticrepeat request (ARQ) for the AM transmission mode, segmentation of RLCservice data units (SDUs) for the AM and UM transmission modes andre-segmentation of RLC SDUs for AM transmission mode, duplicatedetection for the AM transmission mode, RLC SDU discard for the AM andUM transmission modes, etc. The UE may be configured with one RLC entityper RLC channel.

The MAC layer of FIG. 3 (shown in FIG. 2A as MAC 202 at the UE side andMAC 212 at the gNB side) provides services to the RLC layer in form oflogical channels. The MAC layer may perform mapping between logicalchannels and transport channels, multiplexing/demultiplexing of MAC SDUsbelonging to one or more logical channels into/from transport blocks(TBs) delivered to/from the physical layer on transport channels,reporting of scheduling information, error correction through hybridautomatic repeat request (HARQ), priority handling between UEs by meansof dynamic scheduling, priority handling between logical channels of oneUE by means of logical channel prioritization and/or padding. In case ofcarrier aggregation, a MAC entity may comprise one HARQ entity per cell.A MAC entity may support multiple numerologies, transmission timings andcells. The control signaling may configure logical channels with mappingrestrictions. The mapping restrictions in logical channel prioritizationmay control the numerology(ies), cell(s), and/or transmissiontiming(s)/duration(s) that a logical channel may use.

The PHY layer of FIG. 3 (shown in FIG. 2A as PHY 201 at the UE side andPHY 211 at the gNB side) provides transport services to the MAC layer inform of transport channels. The physical layer may handlecoding/decoding, HARQ soft combining, rate matching of a coded transportchannel to physical channels, mapping of coded transport channels tophysical channels, modulation and demodulation of physical channels,frequency and time synchronization, radio characteristics measurementsand indication to higher layers, RF processing, and mapping to antennasand radio resources.

FIG. 4 shows example processing of packets at different protocol layersin accordance with several of various embodiments of the presentdisclosure. In this example, three Internet Protocol (IP) packets thatare processed by the different layers of the NR protocol stack. The termSDU shown in FIG. 4 is the data unit that is entered from/to a higherlayer. In contrast, a protocol data unit (PDU) is the data unit that isentered to/from a lower layer. The flow of packets in FIG. 4 is fordownlink. An uplink data flow through layers of the NR protocol stack issimilar to FIG. 4 . In this example, the two leftmost IP packets aremapped by the SDAP layer (shown as SDAP 205 and SDAP 215 in FIG. 2A) toradio bearer 402 and the rightmost packet is mapped by the SDAP layer tothe radio bearer 404. The SDAP layer adds SDAP headers to the IP packetswhich are entered into the PDCP layer as PDCP SDUs. The PDCP layer isshown as PDCP 204 and PDCP 214 in FIG. 2A. The PDCP layer adds the PDCPheaders to the PDCP SDUs which are entered into the RLC layer as RLCSDUs. The RLC layer is shown as RLC 203 and RLC 213 in FIG. 2A. An RLCSDU may be segmented at the RLC layer. The RLC layer adds RLC headers tothe RLC SDUs after segmentation (if segmented) which are entered intothe MAC layer as MAC SDUs. The MAC layer adds the MAC headers to the MACSDUs and multiplexes one or more MAC SDUs to form a PHY SDU (alsoreferred to as a transport block (TB) or a MAC PDU).

In FIG. 4 , the MAC SDUs are multiplexed to form a transport block. TheMAC layer may multiplex one or more MAC control elements (MAC CEs) withzero or more MAC SDUs to form a transport block. The MAC CEs may also bereferred to as MAC commands or MAC layer control signaling and may beused for in-band control signaling. The MAC CEs may be transmitted by abase station to a UE (e.g., downlink MAC CEs) or by a UE to a basestation (e.g., uplink MAC CEs). The MAC CEs may be used for transmissionof information useful by a gNB for scheduling (e.g., buffer statusreport (BSR) or power headroom report (PHR)), activation/deactivation ofone or more cells, activation/deactivation of configured radio resourcesfor or one or more processes, activation/deactivation of one or moreprocesses, indication of parameters used in one or more processes, etc.

FIG. 5A and FIG. 5B show example mapping between logical channels,transport channels and physical channels for downlink and uplink,respectively in accordance with several of various embodiments of thepresent disclosure. As discussed before, the MAC layer provides servicesto higher layer in the form of logical channels. A logical channel maybe classified as a control channel, if used for transmission of controland/or configuration information, or a traffic channel if used fortransmission of user data. Example logical channels in NR includeBroadcast Control Channel (BCCH) used for transmission of broadcastsystem control information, Paging Control Channel (PCCH) used forcarrying paging messages for wireless devices with unknown locations,Common Control Channel (CCCH) used for transmission of controlinformation between UEs and network and for UEs that have no RRCconnection with the network, Dedicated Control Channel (DCCH) which is apoint-to-point bi-directional channel for transmission of dedicatedcontrol information between a UE that has an RRC connection and thenetwork and Dedicated Traffic Channel (DTCH) which is point-to-pointchannel, dedicated to one UE, for the transfer of user information andmay exist in both uplink and downlink.

As discussed before, the PHY layer provides services to the MAC layerand higher layers in the form of transport channels. Example transportchannels in NR include Broadcast Channel (BCH) used for transmission ofpart of the BCCH referred to as master information block (MIB), DownlinkShared Channel (DL-SCH) used for transmission of data (e.g., from DTCHin downlink) and various control information (e.g., from DCCH and CCCHin downlink and part of the BCCH that is not mapped to the BCH), UplinkShared Channel (UL-SCH) used for transmission of uplink data (e.g., fromDTCH in uplink) and control information (e.g., from CCCH and DCCH inuplink) and Paging Channel (PCH) used for transmission of paginginformation from the PCCH. In addition, Random Access Channel (RACH) isa transport channel used for transmission of random access preambles.The RACH does not carry a transport block. Data on a transport channel(except RACH) may be organized in transport blocks, wherein One or moretransport blocks may be transmitted in a transmission time interval(TTI).

The PHY layer may map the transport channels to physical channels. Aphysical channel may correspond to time-frequency resources that areused for transmission of information from one or more transportchannels. In addition to mapping transport channels to physicalchannels, the physical layer may generate control information (e.g.,downlink control information (DCI) or uplink control information (UCI))that may be carried by the physical channels. Example DCI includescheduling information (e.g., downlink assignments and uplink grants),request for channel state information report, power control command,etc. Example UCI include HARQ feedback indicating correct or incorrectreception of downlink transport blocks, channel state informationreport, scheduling request, etc. Example physical channels in NR includea Physical Broadcast Channel (PBCH) for carrying information from theBCH, a Physical Downlink Shared Channel (PDSCH) for carrying informationform the PCH and the DL-SCH, a Physical Downlink Control Channel (PDCCH)for carrying DCI, a Physical Uplink Shared Channel (PUSCH) for carryinginformation from the UL-SCH and/or UCI, a Physical Uplink ControlChannel (PUCCH) for carrying UCI and Physical Random Access Channel(PRACH) for transmission of RACH (e.g., random access preamble).

The PHY layer may also generate physical signals that are not originatedfrom higher layers. As shown in FIG. 5A, example downlink physicalsignals include Demodulation Reference Signal (DM-RS), Phase TrackingReference Signal (PT-RS), Channel State Information Reference Signal(CSI-RS), Primary Synchronization Signal (PSS) and SecondarySynchronization Signal (SSS). As shown in FIG. 5B, example uplinkphysical signals include DM-RS, PT-RS and sounding reference signal(SRS).

As indicated earlier, some of the protocol layers (PHY, MAC, RLC andPDCP) of the control plane of an NR Uu interface, are common between theuser plane protocol stack (as shown in FIG. 2A) and the control planeprotocol stack (as shown in FIG. 2B). In addition to PHY, MAC, RLC andPDCP, the control plane protocol stack includes the RRC protocol layerand the NAS protocol layer.

The NAS layer, as shown in FIG. 2B, terminates at the UE 200 and the AMF220 entity of the 5G-C 130. The NAS layer is used for core networkrelated functions and signaling including registration, authentication,location update and session management. The NAS layer uses services fromthe AS of the Uu interface to transmit the NAS messages.

The RRC layer, as shown in FIG. 2B, operates between the UE 200 and thegNB 210 (more generally NG-RAN 120) and may provide services andfunctions such as broadcast of system information (SI) related to AS andNAS as well as paging initiated by the 5G-C 130 or NG-RAN 120. Inaddition, the RRC layer is responsible for establishment, maintenanceand release of an RRC connection between the UE 200 and the NG-RAN 120,carrier aggregation configuration (e.g., addition, modification andrelease), dual connectivity configuration (e.g., addition, modificationand release), security related functions, radio bearerconfiguration/maintenance and release, mobility management (e.g.,maintenance and context transfer), UE cell selection and reselection,inter-RAT mobility, QoS management functions, UE measurement reportingand control, radio link failure (RLF) detection and NAS messagetransfer. The RRC layer uses services from PHY, MAC, RLC and PDCP layersto transmit RRC messages using signaling radio bearers (SRBs). The SRBsare mapped to CCCH logical channel during connection establishment andto DCCH logical channel after connection establishment.

FIG. 6 shows example physical layer processes for signal transmission inaccordance with several of various embodiments of the presentdisclosure. Data and/or control streams from MAC layer may beencoded/decoded to offer transport and control services over the radiotransmission link. For example, one or more (e.g., two as shown in FIG.6 ) transport blocks may be received from the MAC layer for transmissionvia a physical channel (e.g., a physical downlink shared channel or aphysical uplink shared channel). A cyclic redundancy check (CRC) may becalculated and attached to a transport block in the physical layer. TheCRC calculation may be based on one or more cyclic generatorpolynomials. The CRC may be used by the receiver for error detection.Following the transport block CRC attachment, a low-density parity check(LDPC) base graph selection may be performed. In example embodiments,two LDPC base graphs may be used wherein a first LDPC base graph may beoptimized for small transport blocks and a second LDPC base graph may beoptimized for comparatively larger transport blocks.

The transport block may be segmented into code blocks and code block CRCmay be calculated and attached to a code block. A code block may be LDPCcoded and the LDPC coded blocks may be individually rate matched. Thecode blocks may be concatenated to create one or more codewords. Thecontents of a codeword may be scrambled and modulated to generate ablock of complex-valued modulation symbols. The modulation symbols maybe mapped to a plurality of transmission layers (e.g., multiple-inputmultiple-output (MIMO) layers) and the transmission layers may besubject to transform precoding and/or precoding. The precodedcomplex-valued symbols may be mapped to radio resources (e.g., resourceelements). The signal generator block may create a baseband signal andup-convert the baseband signal to a carrier frequency for transmissionvia antenna ports. The signal generator block may employ mixers, filtersand/or other radio frequency (RF) components prior to transmission viathe antennas. The functions and blocks in FIG. 6 are illustrated asexamples and other mechanisms may be implemented in various embodiments.

FIG. 7 shows examples of RRC states and RRC state transitions at a UE inaccordance with several of various embodiments of the presentdisclosure. A UE may be in one of three RRC states: RRC_IDLE 702, RRCINACTIVE 704 and RRC_CONNECTED 706. In RRC_IDLE 702 state, no RRCcontext (e.g., parameters needed for communications between the UE andthe network) may be established for the UE in the RAN. In RRC_IDLE 702state, no data transfer between the UE and the network may take placeand uplink synchronization is not maintained. The wireless device maysleep most of the time and may wake up periodically to receive pagingmessages. The uplink transmission of the UE may be based on a randomaccess process and to enable transition to the RRC_CONNECTED 706 state.The mobility in RRC_IDLE 702 state is through a cell reselectionprocedure where the UE camps on a cell based on one or more criteriaincluding signal strength that is determined based on the UEmeasurements.

In RRC_CONNECTED 706 state, the RRC context is established and both theUE and the RAN have necessary parameters to enable communicationsbetween the UE and the network. In the RRC_CONNECTED 706 state, the UEis configured with an identity known as a Cell Radio Network TemporaryIdentifier (C-RNTI) that is used for signaling purposes (e.g., uplinkand downlink scheduling, etc.) between the UE and the RAN. The wirelessdevice mobility in the RRC_CONNECTED 706 state is managed by the RAN.The wireless device provides neighboring cells and/or current servingcell measurements to the network and the network may make hand overdecisions. Based on the wireless device measurements, the currentserving base station may send a handover request message to aneighboring base station and may send a handover command to the wirelessdevice to handover to a cell of the neighboring base station. Thetransition of the wireless device from the RRC_IDLE 702 state to theRRC_CONNECTED 706 state or from the RRC_CONNECTED 706 state to theRRC_IDLE 702 state may be based on connection establishment andconnection release procedures (shown collectively as connectionestablishment/release 710 in FIG. 7 ).

To enable a faster transition to the RRC_CONNECTED 706 state (e.g.,compared to transition from RRC_IDLE 702 state to RRC_CONNECTED 706state), an RRC_INACTIVE 704 state is used for an NR UE wherein, the RRCcontext is kept at the UE and the RAN. The transition from theRRC_INACTIVE 704 state to the RRC_CONNECTED 706 state is handled by RANwithout CN signaling. Similar to the RRC_IDLE 702 state, the mobility inRRC_INACTIVE 704 state is based on a cell reselection procedure withoutinvolvement from the network. The transition of the wireless device fromthe RRC_INACTIVE 704 state to the RRC_CONNECTED 706 state or from theRRC_CONNECTED 706 state to the RRC_INACTIVE 704 state may be based onconnection resume and connection inactivation procedures (showncollectively as connection resume/inactivation 712 in FIG. 7 ). Thetransition of the wireless device from the RRC_INACTIVE 704 state to theRRC_IDLE 702 state may be based on a connection release 714 procedure asshown in FIG. 7 .

In NR, Orthogonal Frequency Division Multiplexing (OFDM), also calledcyclic prefix OFDM (CP-OFDM), is the baseline transmission scheme inboth downlink and uplink of NR and the Discrete Fourier Transform (DFT)spread OFDM (DFT-s-OFDM) is a complementary uplink transmission inaddition to the baseline OFDM scheme. OFDM is multi-carrier transmissionscheme wherein the transmission bandwidth may be composed of severalnarrowband sub-carriers. The subcarriers are modulated by the complexvalued OFDM modulation symbols resulting in an OFDM signal. The complexvalued OFDM modulation symbols are obtained by mapping, by a modulationmapper, the input data (e.g., binary digits) to different points of amodulation constellation diagram. The modulation constellation diagramdepends on the modulation scheme. NR may use different types ofmodulation schemes including Binary Phase Shift Keying (BPSK), π/2-BPSK,Quadrature Phase Shift Keying (QPSK), 16 Quadrature Amplitude Modulation(16QAM), 64QAM and 256QAM. Different and/or higher order modulationschemes (e.g., M-QAM in general) may be used. An OFDM signal with Nsubcarriers may be generated by processing N subcarriers in parallel forexample by using Inverse Fast Fourier Transform (IFFT) processing. TheOFDM receiver may use FFT processing to recover the transmitted OFDMmodulation symbols. The subcarrier spacing of subcarriers in an OFDMsignal is inversely proportional to an OFDM modulation symbol duration.For example, for a 15 KHz subcarrier spacing, duration of an OFDM signalis nearly 66.74s. To enhance the robustness of OFDM transmission in timedispersive channels, a cyclic prefix (CP) may be inserted at thebeginning of an OFDM symbol. For example, the last part of an OFDMsymbol may be copied and inserted at the beginning of an OFDM symbol.The CP insertion enhanced the OFDM transmission scheme by preservingsubcarrier orthogonality in time dispersive channels.

In NR, different numerologies may be used for OFDM transmission. Anumerology of OFDM transmission may indicate a subcarrier spacing and aCP duration for the OFDM transmission. For example, a subcarrier spacingin NR may generally be a multiple of 15 KHz and expressed as Δf=2^(μ)·15KHz (μ=0, 1, 2, . . . ). Example subcarrier spacings used in NR include15 KHz (μ=0), 30 KHz (μ=1), 60 KHz (μ=2), 120 KHz (μ=3) and 240 KHz(μ=4). As discussed before, a duration of OFDM symbol is inverselyproportional to the subcarrier spacing and therefor OFDM symbol durationmay depend on the numerology (e.g., the μ value).

FIG. 8 shows an example time domain transmission structure in NR whereinOFDM symbols are grouped into slots, subframes and frames in accordancewith several of various embodiments of the present disclosure. A slot isa group of N_(symb) ^(slot) OFDM symbols, wherein the N_(symb) ^(slot)may have a constant value (e.g., 14). Since different numerologiesresults in different OFDM symbol durations, duration of a slot may alsodepend on the numerology and may be variable. A subframe may have aduration of 1 ms and may be composed of one or more slots, the number ofwhich may depend on the slot duration. The number of slots per subframeis therefore a function of μ and may generally expressed as N_(slot)^(subframe,μ) and the number of symbols per subframe may be expressed asN_(symb) ^(subframe,μ)=N_(symb) ^(slot)N_(slot) ^(subframe,μ). A framemay have a duration of 10 ms and may consist of 10 subframes. The numberof slots per frame may depend on the numerology and therefore may bevariable. The number of slots per frame may generally be expressed asN_(slot) ^(frame,μ).

An antenna port may be defined as a logical entity such that channelcharacteristics over which a symbol on the antenna port is conveyed maybe inferred from the channel characteristics over which another symbolon the same antenna port is conveyed. For example, for DM-RS associatedwith a PDSCH, the channel over which a PDSCH symbol on an antenna portis conveyed may be inferred from the channel over which a DM-RS symbolon the same antenna port is conveyed, for example, if the two symbolsare within the same resource as the scheduled PDSCH and/or in the sameslot and/or in the same precoding resource block group (PRG). Forexample, for DM-RS associated with a PDCCH, the channel over which aPDCCH symbol on an antenna port is conveyed may be inferred from thechannel over which a DM-RS symbol on the same antenna port is conveyedif, for example, the two symbols are within resources for which the UEmay assume the same precoding being used. For example, for DM-RSassociated with a PBCH, the channel over which a PBCH symbol on oneantenna port is conveyed may be inferred from the channel over which aDM-RS symbol on the same antenna port is conveyed if, for example, thetwo symbols are within a SS/PBCH block transmitted within the same slot,and with the same block index. The antenna port may be different from aphysical antenna. An antenna port may be associated with an antenna portnumber and different physical channels may correspond to differentranges of antenna port numbers.

FIG. 9 shows an example of time-frequency resource grid in accordancewith several of various embodiments of the present disclosure. Thenumber of subcarriers in a carrier bandwidth may be based on thenumerology of OFDM transmissions in the carrier. A resource element,corresponding to one symbol duration and one subcarrier, may be thesmallest physical resource in the time-frequency grid. A resourceelement (RE) for antenna port p and subcarrier spacing configuration μmay be uniquely identified by (k,l)_(p,μ) where k is the index of asubcarrier in the frequency domain and l may refer to the symbolposition in the time domain relative to some reference point. A resourceblock may be defined as N_(SC) ^(RB)=12 subcarriers. Since subcarrierspacing depends on the numerology of OFDM transmission, the frequencydomain span of a resource block may be variable and may depend on thenumerology. For example, for a subcarrier spacing of 15 KHz (e.g., μ=0),a resource block may be 180 KHz and for a subcarrier spacing of 30 KHz(e.g., μ=1), a resource block may be 360 KHz.

With large carrier bandwidths defined in NR and due to limitedcapabilities for some UEs (e.g., due to hardware limitations), a UE maynot support an entire carrier bandwidth. Receiving on the full carrierbandwidth may imply high energy consumption. For example, transmittingdownlink control channels on the full downlink carrier bandwidth mayresult in high power consumption for wide carrier bandwidths. NR may usea bandwidth adaptation procedure to dynamically adapt the transmit andreceive bandwidths. The transmit and receive bandwidth of a UE on a cellmay be smaller than the bandwidth of the cell and may be adjusted. Forexample, the width of the transmit and/or receive bandwidth may change(e.g., shrink during period of low activity to save power); the locationof the transmit and/or receive bandwidth may move in the frequencydomain (e.g., to increase scheduling flexibility); and the subcarrierspacing of the transmit or receive bandwidth may change (e.g., to allowdifferent services). A subset of the cell bandwidth may be referred toas a Bandwidth Part (BWP) and bandwidth adaptation may be achieved byconfiguring the UE with one or more BWPs. The base station may configurea UE with a set of downlink BWPs and a set of uplink BWPs. A BWP may becharacterized by a numerology (e.g., subcarrier spacing and cyclicprefix) and a set of consecutive resource blocks in the numerology ofthe BWP. One or more first BWPs of the one or more BWPs of the cell maybe active at a time. An active BWP may be an active downlink BWP or anactive uplink BWP.

FIG. 10 shows an example of bandwidth part adaptation and switching. Inthis example, three BWPs (BWP₁ 1004, BWP₂ 1006 and BWP₃ 1008) areconfigured for a UE on a carrier bandwidth. The BWP₁ is configured witha bandwidth of 40 MHz and a numerology with subcarrier spacing of 15KHz, the BWP₂ is configured with a bandwidth of 10 MHz and a numerologywith subcarrier spacing of 15 KHz and the BWP₃ is configured with abandwidth of 20 MHz and a subcarrier spacing of 60 KHz. The wirelessdevice may switch from a first BWP (e.g., BWP₁) to a second BWP (e.g.,BWP₂). An active BWP of the cell may change from the first BWP to thesecond BWP in response to the BWP switching.

The BWP switching (e.g., BWP switching 1010, BWP switching 1012, BWPswitching 1014, or BWP switching 1016 in FIG. 10 ) may be based on acommand from the base station. The command may be a DCI comprisingscheduling information for the UE in the second BWP. In case of uplinkBWP switching, the first BWP and the second BWP may be uplink BWPs andthe scheduling information may be an uplink grant for uplinktransmission via the second BWP. In case of downlink BWP switching, thefirst BWP and the second BWP may be downlink BWPs and the schedulinginformation may be a downlink assignment for downlink reception via thesecond BWP.

The BWP switching (e.g., BWP switching 1010, BWP switching 1012, BWPswitching 1014, or BWP switching 1016 in FIG. 10 ) may be based on anexpiry of a timer. The base station may configure a wireless device witha BWP inactivity timer and the wireless device may switch to a defaultBWP (e.g., default downlink BWP) based on the expiry of the BWPinactivity timer. The expiry of the BWP inactivity timer may be anindication of low activity on the current active downlink BWP. The basestation may configure the wireless device with the default downlink BWP.If the base station does not configure the wireless device with thedefault BWP, the default BWP may be an initial downlink BWP. The initialactive BWP may be the BWP that the wireless device receives schedulinginformation for remaining system information upon transition to anRRC_CONNECTED state.

A wireless device may monitor a downlink control channel of a downlinkBWP. For example, the UE may monitor a set of PDCCH candidates inconfigured monitoring occasions in one or more configured COntrolREsource SETs (CORESETs) according to the corresponding search spaceconfigurations. A search space configuration may define how/where tosearch for PDCCH candidates. For example, the search space configurationparameters may comprise a monitoring periodicity and offset parameterindicating the slots for monitoring the PDCCH candidates. The searchspace configuration parameters may further comprise a parameterindicating a first symbol with a slot within the slots determined formonitoring PDCCH candidates. A search space may be associated with oneor more CORESETs and the search space configuration may indicate one ormore identifiers of the one or more CORESETs. The search spaceconfiguration parameters may further indicate that whether the searchspace is a common search space or a UE-specific search space. A commonsearch space may be monitored by a plurality of wireless devices and aUE-specific search space may be dedicated to a specific UE.

FIG. 11A shows example arrangements of carriers in carrier aggregationin accordance with several of various embodiments of the presentdisclosure. With carrier aggregation, multiple NR component carriers(CCs) may be aggregated. Downlink transmissions to a wireless device maytake place simultaneously on the aggregated downlink CCs resulting inhigher downlink data rates. Uplink transmissions from a wireless devicemay take place simultaneously on the aggregated uplink CCs resulting inhigher uplink data rates. The component carriers in carrier aggregationmay be on the same frequency band (e.g., intra-band carrier aggregation)or on different frequency bands (e.g., inter-band carrier aggregation).The component carriers may also be contiguous or non-contiguous. Thisresults in three possible carrier aggregation scenarios, intra-bandcontiguous CA 1102, intra-band non-contiguous CA 1104 and inter-band CA1106 as shown in FIG. 11A. Depending on the UE capability for carrieraggregation, a UE may transmit and/or receive on multiple carriers orfor a UE that is not capable of carrier aggregation, the UE may transmitand/or receive on one component carrier at a time. In this disclosure,the carrier aggregation is described using the term cell and a carrieraggregation capable UE may transmit and/or receive via multiple cells.

In carrier aggregation, a UE may be configured with multiple cells. Acell of the multiple cells configured for the UE may be referred to as aPrimary Cell (PCell). The PCell may be the first cell that the UE isinitially connected to. One or more other cells configured for the UEmay be referred to as Secondary Cells (SCells). The base station mayconfigure a UE with multiple SCells. The configured SCells may bedeactivated upon configuration and the base station may dynamicallyactivate or deactivate one or more of the configured SCells based ontraffic and/or channel conditions. The base station may activate ordeactivate configured SCells using a SCell Activation/Deactivation MACCE. The SCell Activation/Deactivation MAC CE may comprise a bitmap,wherein each bit in the bitmap may correspond to a SCell and the valueof the bit indicates an activation status or deactivation status of theSCell.

An SCell may also be deactivated in response to expiry of a SCelldeactivation timer of the SCell. The expiry of an SCell deactivationtimer of an SCell may be an indication of low activity (e.g., lowtransmission or reception activity) on the SCell. The base station mayconfigure the SCell with an SCell deactivation timer. The base stationmay not configure an SCell deactivation timer for an SCell that isconfigured with PUCCH (also referred to as a PUCCH SCell). Theconfiguration of the SCell deactivation timer may be per configuredSCell and different SCells may be configured with different SCelldeactivation timer values. The SCell deactivation timer may be restartedbased on one or more criteria including reception of downlink controlinformation on the SCell indicating uplink grant or downlink assignmentfor the SCell or reception of downlink control information on ascheduling cell indicating uplink grant or downlink assignment for theSCell or transmission of a MAC PDU based on a configured uplink grant orreception of a configured downlink assignment.

A PCell for a UE may be an SCell for another UE and a SCell for a UE maybe PCell for another UE. The configuration of PCell may be UE-specific.One or more SCells of the multiple SCells configured for a UE may beconfigured as downlink-only SCells, e.g., may only be used for downlinkreception and may not be used for uplink transmission. In case ofself-scheduling, the base station may transmit signaling for uplinkgrants and/or downlink assignments on the same cell that thecorresponding uplink or downlink transmission takes place. In case ofcross-carrier scheduling, the base station may transmit signaling foruplink grants and/or downlink assignments on a cell different from thecell that the corresponding uplink or downlink transmission takes place.

FIG. 11B shows examples of uplink control channel groups in accordancewith several of various embodiments of the present disclosure. A basestation may configure a UE with multiple PUCCH groups wherein a PUCCHgroup comprises one or more cells. For example, as shown in FIG. 11B,the base station may configure a UE with a primary PUCCH group 1114 anda secondary PUCCH group 1116. The primary PUCCH group may comprise thePCell 1110 and one or more first SCells. First UCI corresponding to thePCell and the one or more first SCells of the primary PUCCH group may betransmitted by the PUCCH of the PCell. The first UCI may be, forexample, HARQ feedback for downlink transmissions via downlink CCs ofthe PCell and the one or more first SCells. The secondary PUCCH groupmay comprise a PUCCH SCell and one or more second SCells. Second UCIcorresponding to the PUCCH SCell and the one or more second SCells ofthe secondary PUCCH group may be transmitted by the PUCCH of the PUCCHSCell. The second UCI may be, for example, HARQ feedback for downlinktransmissions via downlink CCs of the PUCCH SCell and the one or moresecond SCells.

FIG. 12A, FIG. 12B and FIG. 12C show example random access processes inaccordance with several of various embodiments of the presentdisclosure. FIG. 12A shows an example of four step contention-basedrandom access (CBRA) procedure. The four-step CBRA procedure includesexchanging four messages between a UE and a base station. Msg1 may befor transmission (or retransmission) of a random access preamble by thewireless device to the base station. Msg2 may be the random accessresponse (RAR) by the base station to the wireless device. Msg3 is thescheduled transmission based on an uplink grant indicated in Msg2 andMsg4 may be for contention resolution.

The base station may transmit one or more RRC messages comprisingconfiguration parameters of the random access parameters. The randomaccess parameters may indicate radio resources (e.g., time-frequencyresources) for transmission of the random access preamble (e.g., Msg1),configuration index, one or more parameters for determining the power ofthe random access preamble (e.g., a power ramping parameter, a preamblereceived target power, etc.), a parameter indicating maximum number ofpreamble transmission, RAR window for monitoring RAR, cell-specificrandom access parameters and UE specific random access parameters. TheUE-specific random access parameters may indicate one or more PRACHoccasions for random access preamble (e.g., Msg1) transmissions. Therandom access parameters may indicate association between the PRACHoccasions and one or more reference signals (e.g., SSB or CSI-RS). Therandom access parameters may further indicate association between therandom access preambles and one or more reference signals (e.g., SBB orCSI-RS). The UE may use one or more reference signals (e.g., SSB(s) orCSI-RS(s)) and may determine a random access preamble to use for Msg1transmission based on the association between the random accesspreambles and the one or more reference signals. The UE may use one ormore reference signals (e.g., SSB(s) or CSI-RS(s)) and may determine thePRACH occasion to use for Msg1 transmission based on the associationbetween the PRACH occasions and the reference signals. The UE mayperform a retransmission of the random access preamble if no response isreceived with the RAR window following the transmission of the preamble.UE may use a higher transmission power for retransmission of thepreamble. UE may determine the higher transmission power of the preamblebased on the power ramping parameter.

Msg2 is for transmission of RAR by the base station. Msg2 may comprise aplurality of RARs corresponding to a plurality of random accesspreambles transmitted by a plurality of UEs. Msg2 may be associated witha random access temporary radio identifier (RA-RNTI) and may be receivedin a common search space of the UE. The RA-RNTI may be based on thePRACH occasion (e.g., time and frequency resources of a PRACH) in whicha random access preamble is transmitted. RAR may comprise a timingadvance command for uplink timing adjustment at the UE, an uplink grantfor transmission of Msg3 and a temporary C-RNTI. In response to thesuccessful reception of Msg2, the UE may transmit the Msg3. Msg3 andMsg4 may enable contention resolution in case of CBRA. In a CBRA, aplurality of UEs may transmit the same random access preamble and mayconsider the same RAR as being corresponding to them. UE may include adevice identifier in Msg3 (e.g., a C-RNTI, temporary C-RNTI or other UEidentity). Base station may transmit the Msg4 with a PDSCH and UE mayassume that the contention resolution is successful in response to thePDSCH used for transmission of Msg4 being associated with the UEidentifier included in Msg3.

FIG. 12B shows an example of a contention-free random access (CFRA)process. Msg 1 (random access preamble) and Msg 2 (random accessresponse) in FIG. 12B for CFRA may be analogous to Msg 1 and Msg 2 inFIG. 12A for CBRA. In an example, the CFRA procedure may be initiated inresponse to a PDCCH order from a base station. The PDCCH order forinitiating the CFRA procedure by the wireless device may be based on aDCI having a first format (e.g., format 1_0). The DCI for the PDCCHorder may comprise a random access preamble index, an UL/SUL indicatorindicating an uplink carrier of a cell (e.g., normal uplink carrier orsupplementary uplink carrier) for transmission of the random accesspreamble, a SS/PBCH index indicating the SS/PBCH that may be used todetermine a RACH occasion for PRACH transmission, a PRACH mask indexindicating the RACH occasion associated with the SS/PBCH indicated bythe SS/PBCH index for PRACH transmission, etc. In an example, the CFRAprocess may be started in response to a beam failure recovery process.The wireless device may start the CFRA for the beam failure recoverywithout a command (e.g., PDCCH order) from the base station and by usingthe wireless device dedicated resources.

FIG. 12C shows an example of a two-step random access process comprisingtwo messages exchanged between a wireless device and a base station. MsgA may be transmitted by the wireless device to the base station and maycomprise one or more transmissions of a preamble and/or one or moretransmissions of a transport block. The transport block in Msg A and Msg3 in FIG. 12A may have similar and/or equivalent contents. The transportblock of Msg A may comprise data and control information (e.g., SR, HARQfeedback, etc.). In response to the transmission of Msg A, the wirelessdevice may receive Msg B from the base station. Msg B in FIG. 12C andMsg 2 (e.g., RAR) illustrated in FIGS. 12A and 12B may have similarand/or equivalent content.

The base station may periodically transmit synchronization signals(SSs), e.g., primary SS (PSS) and secondary SS (SSS) along with PBCH oneach NR cell. The PSS/SSS together with PBCH is jointly referred to as aSS/PBCH block. The SS/PBCH block enables a wireless device to find acell when entering to the mobile communications network or find newcells when moving within the network. The SS/PBCH block spans four OFDMsymbols in time domain. The PSS is transmitted in the first symbol andoccupies 127 subcarriers in frequency domain. The SSS is transmitted inthe third OFDM symbol and occupies the same 127 subcarriers as the PSS.There are eight and nine empty subcarriers on each side of the SSS. ThePBCH is transmitted on the second OFDM symbol occupying 240 subcarriers,the third OFDM symbol occupying 48 subcarriers on each side of the SSS,and on the fourth OFDM symbol occupying 240 subcarriers. Some of thePBCH resources indicated above may be used for transmission of thedemodulation reference signal (DMRS) for coherent demodulation of thePBCH. The SS/PBCH block is transmitted periodically with a periodranging from 5 ms to 160 ms. For initial cell search or for cell searchduring inactive/idle state, a wireless device may assume that that theSS/PBCH block is repeated at least every 20 ms.

In NR, transmissions using of antenna arrays, with many antennaelements, and beamforming plays an important role specially in higherfrequency bands. Beamforming enables higher capacity by increasing thesignal strength (e.g., by focusing the signal energy in a specificdirection) and by lowering the amount interference received at thewireless devices. The beamforming techniques may generally be divided toanalog beamforming and digital beamforming techniques. With digitalbeamforming, signal processing for beamforming is carried out in thedigital domain before digital-to-analog conversion and detailed controlof both amplitude and phase of different antenna elements may bepossible. With analog beamforming, the signal processing for beamformingis carried out in the analog domain and after the digital to analogconversion. The beamformed transmissions may be in one direction at atime. For example, the wireless devices that are in different directionsrelative to the base station may receive their downlink transmissions atdifferent times. For analog receiver-side beamforming, the receiver mayfocus its receiver beam in one direction at a time.

In NR, the base station may use beam sweeping for transmission ofSS/PBCH blocks. The SS/PBCH blocks may be transmitted in different beamsusing time multiplexing. The set of SS/PBCH blocks that are transmittedin one beam sweep may be referred to as a SS/PBCH block set. The periodof PBCH/SSB block transmission may be a time duration between a SS/PBCHblock transmission in a beam and the next SS/PBCH block transmission inthe same beam. The period of SS/PBCH block is, therefore, also theperiod of the SS/PBCH block set.

FIG. 13A shows example time and frequency structure of SS/PBCH blocksand their associations with beams in accordance with several of variousembodiments of the present disclosure. In this example, a SS/PBCH block(also referred to as SSB) set comprise L SSBs wherein an SSB in the SSBset is associated with (e.g., transmitted in) one of L beams of a cell.The transmission of SBBs of an SSB set may be confined within a 5 msinterval, either in a first half-frame or a second half-frame of a 10 msframe. The number of SSBs in an SSB set may depend on the frequency bandof operation. For example, the number of SSBs in a SSB set may be up tofour SSBs in frequency bands below 3 GHz enabling beam sweeping of up tofour beams, up to eight SSBs in frequency bands between 3 GHz and 6 GHzenabling beam sweeping of up to eight beams, and up to sixty four SSBsin higher frequency bands enabling beam sweeping of up to sixty fourbeams. The SSs of an SSB may depend on a physical cell identity (PCI) ofthe cell and may be independent of which beam of the cell is used fortransmission of the SSB. The PBCH of an SSB may indicate a time indexparameter and the wireless device may determine the relative position ofthe SSB within the SSB set using the time index parameter. The wirelessdevice may use the relative position of the SSB within an SSB set fordetermining the frame timing and/or determining RACH occasions for arandom access process.

A wireless device entering the mobile communications network may firstsearch for the PSS. After detecting the PSS, the wireless device maydetermine the synchronization up to the periodicity of the PSS. Bydetecting the PSS, the wireless device may determine the transmissiontiming of the SSS. The wireless device may determine the PCI of the cellafter detecting the SSS. The PBCH of a SS/PBCH block is a downlinkphysical channel that carries the MIB. The MIB may be used by thewireless device to obtain remaining system information (RMSI) that isbroadcast by the network. The RMSI may include System Information Block1 (SIB1) that contains information required for the wireless device toaccess the cell.

As discussed earlier, the wireless device may determine a time indexparameter from the SSB. The PBCH comprises a half-frame parameterindicating whether the SSB is in the first 5 ms half or the second 5 mshalf of a 10 ms frame. The wireless device may determine the frameboundary using the time index parameter and the half-frame parameter. Inaddition, the PBCH may comprise a parameter indicating the system framenumber (SFN) of the cell.

The base station may transmit CSI-RS and a UE may measure the CSI-RS toobtain channel state information (CSI). The base station may configurethe CSI-RS in a UE-specific manner. In some scenarios, same set ofCSI-RS resources may be configured for multiple UEs and one or moreresource elements of a CSI-RS resource may be shared among multiple UEs.A CSI-RS resource may be configured such that it does not collide with aCORESET configured for the wireless device and/or with a DMRS of a PDSCHscheduled for the wireless device and/or transmitted SSBs. The UE maymeasure one or more CSI-RSs configured for the UE and may generate a CSIreport based on the CSI-RS measurements and may transmit the CSI reportto the base station for scheduling, link adaptation and/or otherpurposes.

NR supports flexible CSI-RS configurations. A CSI-RS resource may beconfigured with single or multiple antenna ports and with configurabledensity. Based on the number of configured antenna ports, a CSI-RSresource may span different number of OFDM symbols (e.g., 1, 2, and 4symbols). The CSI-RS may be configured for a downlink BWP and may usethe numerology of the downlink BWP. The CSI-RS may be configured tocover the full bandwidth of the downlink BWP or a portion of thedownlink BWP. In some case, the CSI-RS may be repeated in every resourceblock of the CSI-RS bandwidth, referred to as CSI-RS with density equalto one. In some cases, the CSI-RS may be configured to be repeated inevery other resource block of the CSI-RS bandwidth. CSI-RS may benon-zero power (NZP) CSI-RS or zero-power (ZP) CSI-RS.

The base station may configure a wireless device with one or more setsof NZP CSI-RS resources. The base station may configure the wirelessdevice with a NZP CSI-RS resource set using an RRC information element(IE) NZP-CSI-RS-ResourceSet indicating a NZP CSI-RS resource setidentifier (ID) and parameters specific to the NZP CSI-RS resource set.An NZP CSI-RS resource set may comprise one or more CSI-RS resources. AnNZP CSI-RS resource set may be configured as part of the CSI measurementconfiguration.

The CSI-RS may be configured for periodic, semi-persistent or aperiodictransmission. In case of the periodic and semi-persistent CSI-RSconfigurations, the wireless device may be configured with a CSIresource periodicity and offset parameter that indicate a periodicityand corresponding offset in terms of number of slots. The wirelessdevice may determine the slots that the CSI-RSs are transmitted. Forsemi-persistent CSI-RS, the CSI-RS resources for CSI-RS transmissionsmay be activated and deactivated by using a semi-persistent (SP) CSI-CSIResource Set Activation/Deactivation MAC CE. In response to receiving aMAC CE indicating activation of semi-persistent CSI-RS resources, thewireless device may assume that the CSI-RS transmissions will continueuntil the CSI-RS resources for CSI-RS transmissions are activated.

As discussed before, CSI-RS may be configured for a wireless device asNZP CSI-RS or ZP CSI-RS. The configuration of the ZP CSI-RS may besimilar to the NZP CSI-RS with the difference that the wireless devicemay not carry out measurements for the ZP CSI-RS. By configuring ZPCSI-RS, the wireless device may assume that a scheduled PDSCH thatincludes resource elements from the ZP CSI-RS is rate matched aroundthose ZP CSI-RS resources. For example, a ZP CSI-RS resource configuredfor a wireless device may be an NZP CSI-RS resource for another wirelessdevice. For example, by configuring ZP CSI-RS resources for the wirelessdevice, the base station may indicate to the wireless device that thePDSCH scheduled for the wireless device is rate matched around the ZPCSI-RS resources.

A base station may configure a wireless device with channel stateinformation interference measurement (CSI-IM) resources. Similar to theCSI-RS configuration, configuration of locations and density of CSI-IMresources may be flexible. The CSI-IM resources may be periodic(configured with a periodicity), semi-persistent (configured with aperiodicity and activated and deactivated by MAC CE) or aperiodic(triggered by a DCI).

Tracking reference signals (TRSs) may be configured for a wirelessdevice as a set of sparse reference signals to assist the wireless intime and frequency tracking and compensating time and frequencyvariations in its local oscillator. The wireless device may further usethe TRSs for estimating channel characteristics such as delay spread ordoppler frequency. The base station may use a CSI-RS configuration forconfiguring TRS for the wireless device. The TRS may be configured as aresource set comprising multiple periodic NZP CSI-RS resources.

A base station may configure a UE and the UE may transmit soundingreference signals (SRSs) to enable uplink channel sounding/estimation atthe base station. The SRS may support up to four antenna ports and maybe designed with low cubic metric enabling efficient operation of thewireless device amplifier. The SRS may span one or more (e.g., one, twoor four) consecutive OFDM symbols in time domain and may be locatedwithin the last n (e.g., six) symbols of a slot. In the frequencydomain, the SRS may have a structure that is referred to as a combstructure and may be transmitted on every Nth subcarrier. Different SRStransmissions from different wireless devices may have different combstructures and may be multiplexed in frequency domain.

A base station may configure a wireless device with one or more SRSresource sets and an SRS resource set may comprise one or more SRSresources. The SRS resources in an SRS resources set may be configuredfor periodic, semi-persistent or aperiodic transmission. The periodicSRS and the semi-persistent SRS resources may be configured withperiodicity and offset parameters. The Semi-persistent SRS resources ofa configured semi-persistent SRS resource set may be activated ordeactivated by a semi-persistent (SP) SRS Activation/Deactivation MACCE. The set of SRS resources included in an aperiodic SRS resource setmay be activated by a DCI. A value of a field (e.g., an SRS requestfield) in the DCI may indicate activation of resources in an aperiodicSRS resource set from a plurality of SRS resource sets configured forthe wireless device.

An antenna port may be associated with one or more reference signals.The receiver may assume that the one or more reference signals,associated with the antenna port, may be used for estimating channelcorresponding to the antenna port. The reference signals may be used toderive channel state information related to the antenna port. Twoantenna ports may be referred to as quasi co-located if characteristics(e.g., large-scale properties) of the channel over which a symbol isconveyed on one antenna port may be inferred from the channel over whicha symbol is conveyed from another antenna port. For example, a UE mayassume that radio channels corresponding to two different antenna portshave the same large-scale properties if the antenna ports are specifiedas quasi co-located. In some cases, the UE may assume that two antennaports are quasi co-located based on signaling received from the basestation. Spatial quasi-colocation (QCL) between two signals may be, forexample, due to the two signals being transmitted from the same locationand in the same beam. If a receive beam is good for a signal in a groupof signals that are spatially quasi co-located, it may be assumed alsobe good for the other signals in the group of signals.

The CSI-RS in the downlink and the SRS in uplink may serve asquasi-location (QCL) reference for other physical downlink channels andphysical uplink channels, respectively. For example, a downlink physicalchannel (e.g., PDSCH or PDCCH) may be spatially quasi co-located with adownlink reference signal (e.g., CSI-RS or SSB). The wireless device maydetermine a receive beam based on measurement on the downlink referencesignal and may assume that the determined received beam is also good forreception of the physical channels (e.g., PDSCH or PDCCH) that arespatially quasi co-located with the downlink reference signal.Similarly, an uplink physical channel (e.g., PUSCH or PUCCH) may bespatially quasi co-located with an uplink reference signal (e.g., SRS).The base station may determine a receive beam based on measurement onthe uplink reference signal and may assume that the determined receivedbeam is also good for reception of the physical channels (e.g., PUSCH orPUCCH) that are spatially quasi co-located with the uplink referencesignal.

The Demodulation Reference Signals (DM-RSs) enables channel estimationfor coherent demodulation of downlink physical channels (e.g., PDSCH,PDCCH and PBH) and uplink physical channels (e.g., PUSCH and PUCCH). TheDM-RS may be located early in the transmission (e.g., front-loadedDM-RS) and may enable the receiver to obtain the channel estimate earlyand reduce the latency. The time-domain structure of the DM-RS (e.g.,symbols wherein the DM-RS are located in a slot) may be based ondifferent mapping types.

The Phase Tracking Reference Signals (PT-RSs) enables tracking andcompensation of phase variations across the transmission duration. Thephase variations may be, for example, due to oscillator phase noise. Theoscillator phase noise may become more sever in higher frequencies(e.g., mmWave frequency bands). The base station may configure the PT-RSfor uplink and/or downlink. The PT-RS configuration parameters mayindicate frequency and time density of PT-RS, maximum number of ports(e.g., uplink ports), resource element offset, configuration of uplinkPT-RS without transform precoder (e.g., CP-OFDM) or with transformprecoder (e.g., DFT-s-OFDM), etc. The subcarrier number and/or resourceblocks used for PT-RS transmission may be based on the C-RNTI of thewireless device to reduce risk of collisions between PT-RSs of wirelessdevices scheduled on overlapping frequency domain resources.

FIG. 13B shows example time and frequency structure of CSI-RSs and theirassociation with beams in accordance with several of various embodimentsof the present disclosure. A beam of the L beams shown in FIG. 13B maybe associated with a corresponding CSI-RS resource. The base station maytransmit the CSI-RSs using the configured CSI-RS resources and a UE maymeasure the CSI-RSs (e.g., received signal received power (RSRP) of theCSI-RSs) and report the CSI-RS measurements to the base station based ona reporting configuration. For example, the base station may determineone or more transmission configuration indication (TCI) states and mayindicate the one or more TCI states to the UE (e.g., using RRCsignaling, a MAC CE and/or a DCI). Based on the one or more TCI statesindicated to the UE, the UE may determine a downlink receive beam andreceive downlink transmissions using the receive beam. In case of a beamcorrespondence, the UE may determine a spatial domain filter of atransmit beam based on spatial domain filter of a corresponding receivebeam. Otherwise, the UE may perform an uplink beam selection procedureto determine the spatial domain filter of the transmit beam. The UE maytransmit one or more SRSs using the SRS resources configured for the UEand the base station may measure the SRSs and determine/select thetransmit beam for the UE based the SRS measurements. The base stationmay indicate the selected beam to the UE. The CSI-RS resources shown inFIG. 13B may be for one UE. The base station may configure differentCSI-RS resources associated with a given beam for different UEs by usingfrequency division multiplexing.

A base station and a wireless device may perform beam managementprocedures to establish beam pairs (e.g., transmit and receive beams)that jointly provide good connectivity. For example, in the downlinkdirection, the UE may perform measurements for a beam pair and estimatechannel quality for a transmit beam by the base station (or atransmission reception point (TRP) more generally) and the receive beamby the UE. The UE may transmit a report indicating beam pair qualityparameters. The report may comprise one or more parameters indicatingone or more beams (e.g., a beam index, an identifier of reference signalassociated with a beam, etc.), one or more measurement parameters (e.g.,RSRP), a precoding matrix indicator (PMI), a channel quality indicator(CQI), and/or a rank indicator (RI).

FIG. 14A, FIG. 14B and FIG. 14C show example beam management processes(referred to as P1, P2 and P3, respectively) in accordance with severalof various embodiments of the present disclosure. The P1 process shownin FIG. 14A may enable, based on UE measurements, selection of a basestation (or TRP more generally) transmit beam and/or a wireless devicereceive beam. The TRP may perform a beam sweeping procedure where theTRP may sequentially transmit reference signals (e.g., SSB and/orCSI-RS) on a set of beams and the UE may select a beam from the set ofbeams and may report the selected beam to the TRP. The P2 procedure asshown in FIG. 14B may be a beam refinement procedure. The selection ofthe TRP transmit beam and the UE receive beam may be regularlyreevaluated due to movements and/or rotations of the UE or movement ofother objects. In an example, the base station may perform the beamsweeping procedure over a smaller set of beams and the UE may select thebest beam over the smaller set. In an example, the beam shape may benarrower compared to beam selected based on the P1 procedure. Using theP3 procedure as shown in FIG. 14C, the TRP may fix its transmit beam andthe UE may refine its receive beam.

A wireless device may receive one or more messages from a base station.The one or more messages may comprise one or more RRC messages. The oneor more messages may comprise configuration parameters of a plurality ofcells for the wireless device. The plurality of cells may comprise aprimary cell and one or more secondary cells. For example, the pluralityof cells may be provided by a base station and the wireless device maycommunicate with the base station using the plurality of cells. Forexample, the plurality of cells may be provided by multiple base station(e.g., in case of dual and/or multi-connectivity). The wireless devicemay communicate with a first base station, of the multiple basestations, using one or more first cells of the plurality of cells. Thewireless device may communicate with a second base station of themultiple base stations using one or more second cells of the pluralityof cells.

The one or more messages may comprise configuration parameters used forprocesses in physical, MAC, RLC, PCDP, SDAP, and/or RRC layers of thewireless device. For example, the configuration parameters may includevalues of timers used in physical, MAC, RLC, PCDP, SDAP, and/or RRClayers. For example, the configuration parameters may include parametersfor configurating different channels (e.g., physical layer channel,logical channels, RLC channels, etc.) and/or signals (e.g., CSI-RS, SRS,etc.).

Upon starting a timer, the timer may start running until the timer isstopped or until the timer expires. A timer may be restarted if it isrunning. A timer may be started if it is not running (e.g., after thetimer is stopped or after the timer expires). A timer may be configuredwith or may be associated with a value (e.g., an initial value). Thetimer may be started or restarted with the value of the timer. The valueof the timer may indicate a time duration that the timer may be runningupon being started or restarted and until the timer expires. Theduration of a timer may not be updated until the timer is stopped orexpires (e.g., due to BWP switching). This specification may disclose aprocess that includes one or more timers. The one or more timers may beimplemented in multiple ways. For example, a timer may be used by thewireless device and/or base station to determine a time window [t1, t2],wherein the timer is started at time t1 and expires at time t2 and thewireless device and/or the base station may be interested in and/ormonitor the time window [t1, t2], for example to receive a specificsignaling. Other examples of implementation of a timer may be provided.

FIG. 15 shows example components of a wireless device and a base stationthat are in communication via an air interface in accordance withseveral of various embodiments of the present disclosure. The wirelessdevice 1502 may communicate with the base station 1542 over the airinterface 1532. The wireless device 1502 may include a plurality ofantennas. The base station 1542 may include a plurality of antennas. Theplurality of antennas at the wireless device 1502 and/or the basestation 1542 enables different types of multiple antenna techniques suchas beamforming, single-user and/or multi-user MIMO, etc.

The wireless device 1502 and the base station 1542 may have one or moreof a plurality of modules/blocks, for example RF front end (e.g., RFfront end 1530 at the wireless device 1502 and RF front end 1570 at thebase station 1542), Data Processing System (e.g., Data Processing System1524 at the wireless device 1502 and Data Processing System 1564 at thebase station 1542), Memory (e.g., Memory 1512 at the wireless device1502 and Memory 1542 at the base station 1542). Additionally, thewireless device 1502 and the base station 1542 may have othermodules/blocks such as GPS (e.g., GPS 1514 at the wireless device 1502and GPS 1554 at the base station 1542).

An RF front end module/block may include circuitry between antennas anda Data Processing System for proper conversion of signals between thesetwo modules/blocks. An RF front end may include one or more filters(e.g., Filter(s) 1526 at RF front end 1530 or Filter(s) 1566 at the RFfront end 1570), one or more amplifiers (e.g., Amplifier(s) 1528 at theRF front end 1530 and Amplifier(s) 1568 at the RF front end 1570). TheAmplifier(s) may comprise power amplifier(s) for transmission andlow-noise amplifier(s) (LNA(s)) for reception.

The Data Processing System 1524 and the Data Processing System 1564 mayprocess the data to be transmitted or the received signals byimplementing functions at different layers of the protocol stack such asPHY, MAC, RLC, etc. Example PHY layer functions that may be implementedby the Data Processing System 1524 and/or 1564 may include forward errorcorrection, interleaving, rate matching, modulation, precoding, resourcemapping, MIMO processing, etc. Similarly, one or more functions of theMAC layer, RLC layer and/or other layers may be implemented by the DataProcessing System 1524 and/or the Data Processing System 1564. One ormore processes described in the present disclosure may be implemented bythe Data Processing System 1524 and/or the Data Processing System 1564.A Data Processing System may include an RF module (RF module 1516 at theData Processing System 1524 and RF module 1556 at the Data ProcessingSystem 1564) and/or a TX/RX processor (e.g., TX/RX processor 1518 at theData Processing System 1524 and TX/RX processor 1558 at the DataProcessing System 1566) and/or a central processing unit (CPU) (e.g.,CPU 1520 at the Data Processing System 1524 and CPU 1560 at the DataProcessing System 1564) and/or a graphical processing unit (GPU) (e.g.,GPU 1522 at the Data Processing System 1524 and GPU 1562 at the DataProcessing System 1564).

The Memory 1512 may have interfaces with the Data Processing System 1524and the Memory 1552 may have interfaces with Data Processing System1564, respectively. The Memory 1512 or the Memory 1552 may includenon-transitory computer readable mediums (e.g., Storage Medium 1510 atthe Memory 1512 and Storage Medium 1550 at the Memory 1552) that maystore software code or instructions that may be executed by the DataProcessing System 1524 and Data Processing System 1564, respectively, toimplement the processes described in the present disclosure. The Memory1512 or the Memory 1552 may include random-access memory (RAM) (e.g.,RAM 1506 at the Memory 1512 or RAM 1546 at the Memory 1552) or read-onlymemory (ROM) (e.g., ROM 1508 at the Memory 1512 or ROM 1548 at theMemory 1552) to store data and/or software codes.

The Data Processing System 1524 and/or the Data Processing System 1564may be connected to other components such as a GPS module 1514 and a GPSmodule 1554, respectively, wherein the GPS module 1514 and a GPS module1554 may enable delivery of location information of the wireless device1502 to the Data Processing System 1524 and location information of thebase station 1542 to the Data Processing System 1564. One or more otherperipheral components (e.g., Peripheral Component(s) 1504 or PeripheralComponent(s) 1544) may be configured and connected to the dataProcessing System 1524 and data Processing System 1564, respectively.

In example embodiments, a wireless device may be configured withparameters and/or configuration arrangements. For example, theconfiguration of the wireless device with parameters and/orconfiguration arrangements may be based on one or more control messagesthat may be used to configure the wireless device to implement processesand/or actions. The wireless device may be configured with theparameters and/or the configuration arrangements regardless of thewireless device being in operation or not in operation. For example,software, firmware, memory, hardware and/or a combination thereof and/oralike may be configured in a wireless device regardless of the wirelessdevice being in operation or not operation. The configured parametersand/or settings may influence the actions and/or processes performed bythe wireless device when in operation.

In example embodiments, a wireless device may receive one or moremessages comprising configuration parameters. For example, the one ormore messages may comprise radio resource control (RRC) messages. Aparameter of the configuration parameters may be in at least one of theone or more messages. The one or more messages may comprise informationelement (IEs). An information element may be a structural element thatincludes single or multiple fields. The fields in an IE may beindividual contents of the IE. The terms configuration parameter, IE andfield may be used equally in this disclosure. The IEs may be implementedusing a nested structure, wherein an IE may include one or more otherIEs and an IE of the one or more other IEs may include one or moreadditional IEs. With this structure, a parent IE contains all theoffspring IEs as well. For example, a first IE containing a second IE,the second IE containing a third IE, and the third IE containing afourth IE may imply that the first IE contains the third IE and thefourth IE.

In an example, in PUCCH carrier switching (e.g., for HARQ-ACK), PUCCHcarrier switching for different cells operated may be considered forcells that are part of the active UL carrier aggregation (CA)configuration.

In an example, PUCCH carrier switching may be based on dynamicindication in DCI.

In an example, PUCCH carrier switching may be based on one or more rules(e.g., semi-static rules).

In an example, PUCCH carrier switching may be based on an RRC configuredPUCCH cell timing pattern of applicable/candidate PUCCH cells.

In an example, PUCCH carrier switching may be based on dynamicindication in a DCI scheduling a PUCCH and/or based on semi-staticconfiguration. In an example, dynamic indication and/or semi-staticconfiguration may be subject to separate wireless device capabilities(e.g., separate capability information elements may indicate whether thewireless device is capable of PUCCH carrier switching based on dynamicindication and whether the wireless device is capable of PUCCH carrierswitching based on semi-static configuration). In an example, thesemi-static PUCCH carrier switching configuration operation may be basedon RRC configured PUCCH cell timing pattern of applicable/candidatePUCCH cells. In an example, PUCCH carrier switching may be across cellswith different numerologies.

In an example, a maximum number of candidate PUCCH cells/carriers forPUCCH carrier switching may be configured or may be pre-configured. Inan example, the maximum number of candidate PUCCH cells/carriers forPUCCH carrier switching may be based on wireless device capability. Inan example, the wireless device may transmit one or more capabilitymessages comprising one or more information elements indicating thewireless device capability in terms of the maximum number of candidatePUCCH cells/carriers for PUCCH carrier switching. The wireless devicemay receive configuration parameters of the candidate PUCCHcells/carriers for PUCCH carrier switching based on the wireless devicecapability.

In an example, for PUCCH carrier switching, the PUCCH resourceconfiguration may be per UL BWP (e.g., per candidate cell and UL BWP ofthat specific candidate cell).

In an example, for PUCCH carrier switching, the PUCCH resourceconfiguration (e.g., pucch-Config/PUCCH-ConfigurationList) may be per ULBWP (e.g., per candidate cell and UL BWP of that specific candidatecell).

In an example, for PUCCH carrier switching, PUCCH carrier switching maybe among different TDD cells with PUCCH configured on the normal uplink(NUL) carrier.

In an example, for semi-static and dynamic indication of PUCCH cellswitching, the PUCCH repetition factor may be determined based on thePUCCH format or PUCCH resource on the target PUCCH cell for the firstrepetition.

In an example, PUCCH cell switching may between two cells.

In an example, PUCCH cell switching may be between more than two cells.

In an example, semi-static PUCCH carrier switching may be applicable todifferent uplink control information (UCI) types including HARQ feedbackSR and CSI.

In an example, for semi-static PUCCH cell switching,PCell/PSCell/PUCCH-SCell may be a reference cell. In an example, thetime domain pattern configurations may be based on the numerology of thereference cell. In an example, the PDSCH to HARQ-ACK offset kl may beinterpreted based on the numerology and PUCCH configuration of areference cell to be able to apply the time-domain PUCCH cell switchingpattern.

In an example for PUCCH carrier switching based on dynamic indication inDCI scheduling a PUCCH, the PDSCH to HARQ feedback timing/offset (e.g.,kl value) may be based on the numerology of the dynamically indicatedtarget PUCCH cell.

In an example, a wireless device may not expect overlapping PUCCH slotswith dynamic PUCCH cell indication on more than one carrier. The gNB maydynamically indicate a single PUCCH cell for a final PUCCH slot.

In an example, for semi-static PUCCH carrier switching, the time-domainpattern configuration may be based on the following properties: a singletime-domain pattern may be configured per PUCCH cell group; thegranularity of the time-domain pattern may be one slot of thePCell/PSCell/PUCCH-SCell. In an example, the time-domain pattern may beapplied periodically. In an example, the period may be one frame (10ms). In an example, the period may be RRC configured (e.g., the wirelessdevice may receive one or more configuration parameters indicating theperiod). In an example, the timing pattern may define, for each slot ofthe PCell/PSCell/PUCCH-SCell, at least the applicable PUCCH cell.

In an example, for semi-static PUCCH carrier switching, the PDSCH toHARQ feedback timing/offset (e.g., kl value) may be interpreted based onthe numerology and PUCCH configuration of a reference cell to be able toapply the time-domain PUCCH carrier switching pattern.

In an example, for semi-static PUCCH carrier switching, the PUCCHresource indicator (PRI) of a may be interpreted based on the PUCCHconfiguration of determined target PUCCH cell.

In an example, the periodicity/length of the time-domain pattern forsemi-static PUCCH cell switching may be directly determined by the RRCconfiguration of the time domain pattern (e.g., based on apucchCellPattern IE). In an example, pucchCellPattern may have avariable length (e.g., a variable length of 1 . . . maxNrofSlots).

In an example, for PUCCH carrier switching based on semi-staticoperation, for the case the PCell slot to be longer than the targetPUCCH cell slot or sub-slot (e.g., multiple target PUCCH cell slotsoverlapping with a single PCell slot), the first target PUCCH slotoverlapping with the PCell slot may be used for UCI transmission.

In an example, for PUCCH carrier switching based on semi-staticoperation, for the case the PCell slot to be longer than the targetPUCCH cell slot or sub-slot (e.g., multiple target PUCCH cell slotsoverlapping with a single PCell slot), a relative slot-offset within thereference cell slot may be used, the relative slot offset may beconfigured in the time domain pattern (e.g., time domain pattern maycontain ‘cell index’ and ‘slot_offset’ for each reference cell slot).

In an example, for PUCCH carrier switching based on semi-staticoperation, for the case the PCell slot to be shorter than the targetPUCCH cell slot, the UE may not expect the same UCI type (e.g.,HARQ-ACK, SR or CSI) from more than one PCell PUCCH slot to beoverlapping with a single dynamically indicated PUCCH cell slot. In anexample, there may be HARQ-ACK only present in either of the overlappingslots, but not in more than one overlapping slot.

In an example, for PUCCH carrier switching based on semi-staticoperation, for the case the PCell slot to be shorter than the targetPUCCH cell slot, the UE may not expect a semi-static PUCC cellconfiguration, where a single target PUCCH slot/sub-slot may beoverlapping with more than one PCell slot/sub-slot.

In an example, for PUCCH carrier switching based on dynamic indicationin DCI scheduling a PUCCH, the PDSCH to HARQ-ACK offset kl isinterpreted based on the numerology of the dynamically indicated targetPUCCH cell.

In an example, in addition to HARQ feedback of PDSCH dynamicallyscheduled by a DCI indicating a PUCCH carrier, the dynamic targetcarrier indication also applies to: HARQ feedback corresponding to thefirst SPS PDSCH activated by activation DCI based on the indication inthe activation DCI; HARQ feedback corresponding to the SPS Release DCIbased on the indication in the release DCI; triggered PUCCH for Type 3codebook (CB) and one-shot triggering for HARQ feedback retransmissionbased on the indication in the triggering DCI.

In an example, UE may not expect overlapping PUCCH slots with dynamicPUCCH cell indication on more than one cell, e.g., gNB may onlydynamically indicate a single PUCCH cell for a final PUCCH slot.

In an example, for PUCCH cell switching based on dynamic indication inthe DCI, a dedicated DCI field for the DCI scheduling PDSCH may be usedto indicate the target PUCCH cell.

In an example, the dynamic target PUCCH cell indication may apply toHARQ-ACK corresponding to SCell dormancy indication without schedulingPDSCH.

In an example, PUCCH cell switching may be based on dynamic indicationin the DCI using DCI format 1_2 for a UE supporting DCI format 1_2. Inan example, the presence of the ‘PUCCH carrier switching’ bitfield inDCI format 1_2 may be RRC configured.

In an example, for semi-static PUCCH carrier switching, the time-domainpattern periodicity may be RRC configured, using candidate values ofapplicable periodicities from dl-UL-TransmissionPeriodicity anddl-UL-TransmissionPeriodicity-v1530 (e.g., {ms0p5, ms0p625, ms1, ms1p25,ms2, ms2p5, ms3, ms4, ms5, ms10}).

In an example, for PUCCH carrier switching, the PUCCH configuration(e.g., pucch-Config/PUCCH-ConfigurationList) may be per UL BWP (e.g.,per candidate cell and UL BWP of that specific candidate cell).

In an example, semi-static PUCCH carrier switching may be applicable toUCI types including HARQ feedback, scheduling request (SR) and channelstate information (CSI).

In an example, SPS HARQ-ACK deferral and PUCCH cell switching based onthe semi-static time domain pattern may be simultaneously configured.For the target slot determination of SPS HARQ-ACK deferral, the UE mayfirst determine a next PUCCH slot on the cell for PUCCH transmissionusing the semi-static time-domain PUCCH cell pattern and the relatedrules for semi-static PUCCH cell switching. The UE may determine, basedon the SPS HARQ-ACK deferral rules, if this PUCCH slot on the PUCCH cellfor transmission is the target PUCCH slot or not.

In an example, one-shot HARQ-ACK re-transmission and semi-static PUCCHcell switching may be simultaneously configured.

In an example, for PUCCH cell switching based on semi-static operation,for the case the PCell slot to be longer than the target PUCCH cell slotor sub-slot (e.g., multiple target PUCCH cell slots overlapping with asingle PCell slot, the first target PUCCH slot overlapping with thePCell slot may be used for UCI transmission.

In an example, the time-domain pattern for semi-static PUCCH cellswitching may be separately configurable for the primary and secondaryPUCCH cell group.

In an example, the time-domain pattern for semi-static PUCCH cellswitching may be based on the reference SCS configuration provided bytdd-UL-DL-ConfigurationCommon and may be common to every configured ULBWP (e.g., of PCell/SPCell/PUCCH SCell).

In an example, for PUCCH cell switching based on semi-static operation,the UE may not expect a semi-static PUCCH cell configuration, where asingle target PUCCH slot/sub-slot would be overlapping with more thanone PCell slot/sub-slot.

In an example, for semi-static PUCCH cell switching, if the alternativePUCCH cell (e.g., PUCCH SCell) is deactivated or the alternative PUCCHCell is dormant, the UE may not apply time-domain pattern and the UCImay be transmitted on PCell/SPCell/PUCCH SCell.

In an example, for dynamic PUCCH cell switching, the UE may not expect aPUCCH slot with UCI on PCell/SPCell/PUCCH SCell to overlap with a PUCCHslot with HARQ-ACK on the dynamically indicated alternative PUCCH cell.In an example, the UCI on PCell/SPCell/PUCCH SCell dropped due tocollision with semi-static DL symbols, SSB, and symbols indicated bypdcch-ConfigSIB1 in MIB for a CORESET for Type0-PDCCH CSS set may beexempted and may not be multiplexed on the PUCCH on the alternativePUCCH cell.

In an example, an IE ServCellIndex may concern a short identity, used touniquely identify a serving cell (e.g., the PCell, the PSCell or anSCell) across the cell groups. Value 0 may apply for the PCell, whilethe SCellIndex that may have previously been assigned may apply forSCells. A value of ServCellIndex may be between 0 andmaxNrofServingCells−1.

In an example, an IE SCellIndex may concern a short identity, used toidentify an SCell. The value range may be shared across the Cell Groups.A value of SCellIndex may be between 1 and 31.

In an example, an IE ServingCellConfig may be used to configure (e.g.,add and/or modify) the UE with a serving cell, which may be the SpCellor an SCell of a master cell group (MCG) or secondary cell group (SCG).The parameters herein may be mostly UE specific but may partly also becell specific (e.g., in additionally configured bandwidth parts).Reconfiguration between a PUCCH and PUCCHless SCell may be supportedusing an SCell release and add. A field/parametercsi-RS-ValidationWithDCI may indicate how the UE may perform periodicand semi-persistent CSI-RS reception in a slot. The presence of thisfield may indicate that the UE uses DCI detection to validate whether toreceive CSI-RS.

In an example, an IE CSI-MeasConfig may be used to configure CSI-RS(reference signals) belonging to the serving cell in whichCSI-MeasConfig is included, channel state information reports to betransmitted on PUCCH on the serving cell in which CSI-MeasConfig isincluded and channel state information reports on PUSCH triggered by DCIreceived on the serving cell in which CSI-MeasConfig is included. Afield aperiodicTriggerStateList may contain trigger states fordynamically selecting one or more aperiodic and semi-persistentreporting configurations and/or triggering one or more aperiodic CSI-RSresource sets for channel and/or interference measurement. Afield/parameter csi-ReportConfigToAddModList may indicate configured CSIreport settings. A field/parameter csi-ResourceConfigToAddModList mayindicate configured CSI resource settings. A field/parametercsi-SSB-ResourceSetToAddModList may indicate pool of CSI-SSB-ResourceSetwhich may be referred to from CSI-ResourceConfig. A field/parameternzp-CSI-RS-ResourceSetToAddModList may indicate pool ofNZP-CSI-RS-ResourceSet which may be referred to from CSI-ResourceConfigor from MAC CEs. A field/parameter nzp-CSI-RS-ResourceToAddModList mayindicate pool of NZP-CSI-RS-Resource which may be referred to fromNZP-CSI-RS-ResourceSet.

In an example, csi-ReportConfigToAddModList may indicate configured CSIreport settings.

In an example, an IE CSI-ReportConfig may be used to configure aperiodic or semi-persistent report sent on PUCCH on the cell in whichthe CSI-ReportConfig is included, or to configure a semi-persistent oraperiodic report sent on PUSCH triggered by DCI received on the cell inwhich the CSI-ReportConfig is included (in this case, the cell on whichthe report is sent may be determined by the received DCI). Afield/parameter carrier may indicate in which serving cell theCSI-ResourceConfig indicated below are to be found. If the field isabsent, the resources may be on the same serving cell as this reportconfiguration. A field/parameter cqi-FormatIndicator may Indicatewhether the UE may report a single (wideband) or multiple (subband) CQI.A field/parameter cqi-Table may indicate which CQI table to use for CQIcalculation. A field/parameter csi-IM-ResourcesForInterference mayindicate CSI IM resources for interference measurement.csi-ResourceConfigId of a CSI-ResourceConfig included in theconfiguration of the serving cell indicated with the field “carrier”above. The CSI-ResourceConfig indicated here may contain CSI-IMresources. The bwp-Id in that CSI-ResourceConfig may be the same valueas the bwp-Id in the CSI-ResourceConfig indicated byresourcesForChannelMeasurement. A field/parameter csi-ReportingBand mayindicate a contiguous or non-contiguous subset of subbands in thebandwidth part which CSI may be reported for. Each bit in the bit-stringmay represent one subband. The right-most bit in the bit string mayrepresent the lowest subband in the BWP. The choice may determine thenumber of subbands (subbands3 for 3 subbands, subbands4 for 4 subbands,and so on). A field/parameter nrofReportedRS may indicate the number (N)of measured RS resources to be reported per report setting in anon-group-based report. N<=N_max, where N_max may be 2 or 4 depending onUE capability. A field/parameter nzp-CSI-RS-ResourcesForInterference mayindicate NZP CSI RS resources for interference measurement.csi-ResourceConfigId of a CSI-ResourceConfig included in theconfiguration of the serving cell indicated with the field “carrier”above. The CSI-ResourceConfig indicated here may contain NZP-CSI-RSresources. The bwp-Id in that CSI-ResourceConfig may be the same valueas the bwp-Id in the CSI-ResourceConfig indicated byresourcesForChannelMeasurement. A field/parameter pmi-FormatIndicatormay Indicate whether the UE may report a single (wideband) or multiple(subband) PMI. A field/parameter pucch-CSI-ResourceList may indicatewhich PUCCH resource to use for reporting on PUCCH. A field/parameterreportConfigType may indicate time domain behavior of reportingconfiguration. A field/parameter reportFreqConfiguration may indicatereporting configuration in the frequency domain. A field/parameterreportQuantity may indicate the CSI related quantities to report. Afield/parameter reportSlotConfig may indicate periodicity and slotoffset. A field/parameter subbandSize may Indicate one out of twopossible BWP-dependent values for the subband size. A field/parametertimeRestrictionForChannelMeasurements may indicate time domainmeasurement restriction for the channel (signal) measurements. Afield/parameter timeRestrictionForInterferenceMeasurements may indicatetime domain measurement restriction for interference measurements. Afield/parameter pucch-Resource may indicate PUCCH resource for theassociated uplink BWP.

In an example, an IE CSI-ReportConfigId may be used to identify oneCSI-ReportConfig.

In an example, an IE CSI-ResourceConfig may define a group of one ormore NZP-CSI-RS-ResourceSet, CSI-IM-ResourceSet and/orCSI-SSB-ResourceSet. A field/parameter bwp-Id may indicate the DL BWPwhich the CSI-RS associated with this CSI-ResourceConfig are located in.A field/parameter csi-IM-ResourceSetList may indicate list of referencesto CSI-IM resources used for CSI measurement and reporting in a CSI-RSresource set. It may contain up to maxNrofCSI-IM-ResourceSetsPerConfigresource sets if resourceType is ‘aperiodic’ and 1 otherwise. Afield/parameter csi-ResourceConfigId may be used in CSI-ReportConfig torefer to an instance of CSI-ResourceConfig. A filed/parametercsi-SSB-ResourceSetList may indicate list of references to SSB resourcesused for CSI measurement and reporting in a CSI-RS resource set. Afield/parameter nzp-CSI-RS-ResourceSetList may indicate list ofreferences to NZP CSI-RS resources used for beam measurement andreporting in a CSI-RS resource set. It may contain up tomaxNrofNZP-CSI-RS-ResourceSetsPerConfig resource sets if resourceType is‘aperiodic’ and 1 otherwise. A field/parameter resourceType may indicatetime domain behavior of resource configuration. It may not apply toresources provided in the csi-SSB-ResourceSetList.

In an example, an IE CSI-ResourceConfigId may be used to identify aCSI-ResourceConfig. It may take a value between 0 andmaxNrofCSI-ResourceConfigurations−1.

In an example, an IE CSI-ResourcePeriodicityAndOffset may be used toconfigure a periodicity and a corresponding offset for periodic andsemi-persistent CSI resources, and for periodic and semi-persistentreporting on PUCCH. The periodicity and the offset may be given innumber of slots. The periodicity value slots4 may correspond to 4 slots,value slots5 may correspond to 5 slots, and so on.

In an example, an IE CSI-RS-ResourceMapping may be used to configure theresource element mapping of a CSI-RS resource in time- and frequencydomain. A filed/parameter cdm-Type may indicate code divisionmultiplexing (CDM) type. A filed/parameter density may indicate densityof CSI-RS resource measured in RE/port/PRB. A filed/parameterfirstOFDMSymbolInTimeDomain2 may indicate time domain allocation withina physical resource block. A filed/parameter firstOFDMSymbolInTimeDomainmay indicate time domain allocation within a physical resource block.The field may indicate the first OFDM symbol in the PRB used for CSI-RS.A field/parameter freqBand may indicate wideband or partial band CSI-RS.A filed/parameter frequencyDomainAllocation may indicate frequencydomain allocation within a physical resource block.

In an example, an IE CSI-FrequencyOccupation may be used to configurethe frequency domain occupation of a channel state informationmeasurement resource (e.g., NZP-CSI-RS-Resource, CSI-IM-Resource). Afield/parameter nrofRBs may indicate number of PRBs across which thisCSI resource spans. If the configured value is larger than the width ofthe corresponding BWP, the UE may assume that the actual CSI-RSbandwidth is equal to the width of the BWP. A field/parameter startingRBmay indicate PRB where this CSI resource starts in relation to commonresource block #0 (CRB #0) on the common resource block grid.

In an example, an IE PUCCH-Config may be used to configure UE specificPUCCH parameters (per BWP).

In an example, an IE PUCCH-ConfigCommon is used to configure the cellspecific PUCCH parameters.

In an example, a CSI Resource Setting CSI-ResourceConfig may contain aconfiguration of a list of S≥1 CSI Resource Sets (given by higher layerparameter csi-RS-ResourceSetList), where the list may comprisereferences to either or both of NZP CSI-RS resource set(s) and SS/PBCHblock set(s) or the list may comprise of references to CSI-IM resourceset(s). A CSI Resource Setting may be located in the DL BWP identifiedby the higher layer parameter BWP-id, and CSI Resource Settings linkedto a CSI Report Setting may have the same DL BWP.

In an example, the time domain behavior of the CSI-RS resources within aCSI Resource Setting may be indicated by the higher layer parameterresourceType and may be set to aperiodic, periodic, or semi-persistent.For periodic and semi-persistent CSI Resource Settings, the number ofCSI-RS Resource Sets configured may be limited to S=1. For periodic andsemi-persistent CSI Resource Settings, the configured periodicity andslot offset may be given in the numerology of its associated DL BWP, asgiven by BWP-id. When a UE is configured with multipleCSI-ResourceConfigs comprising the same NZP CSI-RS resource ID, the sametime domain behavior may be configured for the CSI-ResourceConfigs. Whena UE is configured with multiple CSI-ResourceConfigs comprising the sameCSI-IM resource ID, the same time-domain behavior may be configured forthe CSI-ResourceConfigs. CSI Resource Settings linked to a CSI ReportSetting may have the same time domain behavior.

In an example, the following may be configured via higher layersignaling for one or more CSI Resource Settings for channel andinterference measurement: CSI-IM resource for interference measurement;NZP CSI-RS resource for interference measurement; NZP CSI-RS resourcefor channel measurement.

In an example, the UE may assume that the NZP CSI-RS resource(s) forchannel measurement and the CSI-IM resource(s) for interferencemeasurement configured for one CSI reporting may be resource-wise QCLedwith respect to ‘typeD’. When NZP CSI-RS resource(s) is used forinterference measurement, the UE may assume that the NZP CSI-RS resourcefor channel measurement and the CSI-IM resource or NZP CSI-RSresource(s) for interference measurement configured for one CSIreporting are QCLed with respect to ‘typeD’.

In an example, the Reporting configuration for CSI may be aperiodic(using PUSCH), periodic (using PUCCH) or semi-persistent (using PUCCH,and DCI activated PUSCH). The CSI-RS Resources may be periodic,semi-persistent, or aperiodic. Example supported combinations of CSIReporting configurations and CSI-RS Resource configurations and how theCSI Reporting is triggered for each CSI-RS Resource configuration areshown below. Periodic CSI-RS may be configured by higher layers.Semi-persistent CSI-RS may be activated and deactivated. AperiodicCSI-RS may be configured and triggered/activated.

For Periodic CSI-RS configuration: periodic CSI reporting may not bebased on dynamic triggering/activation; for semi-persistent CSIreporting on PUCCH, the UE may receive an activation command and forsemi-persistent CSI reporting on PUSCH, the UE may receive triggering onDCI; aperiodic CSI reporting may be triggered by DCI and subselectionindication may be possible.

For semi-persistent CSI-RS configuration: periodic CSI reporting may notbe supported; for semi-persistent CSI reporting on PUCCH, the UE mayreceive an activation command, for semi-persistent reporting on PUSCH,the UE may receive triggering on DCI; aperiodic CSI reporting may betriggered by DCI and subselection indication may be possible.

For aperiodic CSI-RS configuration: periodic CSI reporting may not besupported; semi-persistent CSI reporting may not be supported; aperiodicCSI reporting may be triggered by DCI and subselection indication may bepossible.

In an example, for a periodic or semi-persistent CSI report on PUCCH,the periodicity T_(CSI) (measured in slots) and the slot offsetT_(offset) may be configured by the higher layer parameterreportSlotConfig. The UE may transmit the CSI report in frames with SFNn_(f) and slot number within the frame n_(s,f) ^(μ) satisfying (N_(slot)^(frame,μ)n_(f)+n_(s,f) ^(μ)−T_(offset))mod T_(CSI)=0, where μ is theSCS configuration of the UL BWP the CSI report is transmitted on.

In an example, for semi-persistent or periodic CSI, a CSI-ReportConfigmay be linked to periodic or semi-persistent Resource Setting(s). Whenone Resource Setting (given by higher layer parameterresourcesForChannelMeasurement) is configured, the Resource Setting maybe for channel measurement for L1-RSRP or for channel and interferencemeasurement for L1-SINR computation. When two Resource Settings areconfigured, the first Resource Setting (given by higher layer parameterresourcesForChannelMeasurement) may be for channel measurement and thesecond Resource Setting (given by higher layer parametercsi-IM-ResourcesForInterference) may be used for interferencemeasurement performed on CSI-IM. For L1-SINR computation, the secondResource Setting (given by higher layer parametercsi-IM-ResourcesForInterference or higher layer parameternzp-CSI-RS-ResourceForInterference) may be used for interferencemeasurement performed on CSI-IM or on NZP CSI-RS.

In an example, a UE may be configured with a CSI-ReportConfig with thehigher layer parameter reportQuantity set to either ‘none’,‘cri-RI-PMI-CQI’, ‘cri-RI-i1’, ‘cri-RI-i1-CQI’, ‘cri-RI-CQI’,‘cri-RSRP’, ‘cri-SINR’, ‘ssb-Index-RSRP’, ‘ssb-Index-SINR’ or‘cri-RI-LI-PMI-CQI’.

In an example, for semi-persistent reporting on PUCCH, the PUCCHresource used for transmitting the CSI report may be configured byreportConfigType. Semi-persistent reporting on PUCCH may be activated byan activation command, which selects one of the semi-persistentReporting Settings for use by the UE on the PUCCH. When the UE wouldtransmit a PUCCH with HARQ-ACK information in slot n corresponding tothe PDSCH carrying the activation command, the indicated semi-persistentReporting Setting may be applied starting from the first slot that isafter slot n+3N_(slot) ^(subframe,μ) where μ is the SCS configurationfor the PUCCH.

In an example, a UE may be semi-statically configured by higher layersto perform periodic CSI Reporting on the PUCCH. A UE may be configuredby higher layers for multiple periodic CSI Reports corresponding tomultiple higher layer configured CSI Reporting Settings, where theassociated CSI Resource Settings are higher layer configured. PeriodicCSI reporting on PUCCH formats 2, 3, 4 may support Type I CSI withwideband granularity.

In an example, a UE may perform semi-persistent CSI reporting on thePUCCH applied starting from the first slot that is after slotn+3N_(slot) ^(subframe,μ) when the UE would transmit a PUCCH withHARQ-ACK information in slot n corresponding to the PDSCH carrying theactivation command where Q is the SCS configuration for the PUCCH. Theactivation command may contain one or more Reporting Settings where theassociated CSI Resource Settings may be configured. Semi-persistent CSIreporting on the PUCCH may support Type I CSI. Semi-persistent CSIreporting on the PUCCH format 2 may support Type I CSI with widebandfrequency granularity. Semi-persistent CSI reporting on PUCCH formats 3or 4 may support Type I CSI with wideband and sub-band frequencygranularities and Type II CSI Part 1.

In an example, when the UE is configured with CSI Reporting on PUCCHformats 2, 3 or 4, each PUCCH resource may be configured for eachcandidate UL BWP.

In an example, if the UE is in an active semi-persistent CSI reportingconfiguration on PUCCH and has not received a deactivation command, theCSI reporting may take place when the BWP in which the reporting isconfigured to take place is the active BWP, otherwise the CSI reportingmay be suspended.

In an example, the network may activate and deactivate the configuredSemi-persistent CSI reporting on PUCCH of a Serving Cell by sending theSP CSI reporting on PUCCH Activation/Deactivation MAC CE. The configuredSemi-persistent CSI reporting on PUCCH may be initially deactivated uponconfiguration and after a handover.

In an example, if the MAC entity receives an SP CSI reporting on PUCCHActivation/Deactivation MAC CE on a Serving Cell, the MAC entity mayindicate to lower layers the information regarding the SP CSI reportingon PUCCH Activation/Deactivation MAC CE.

In an example, the SP CSI reporting on PUCCH Activation/Deactivation MACCE may be identified by a MAC subheader with a corresponding LCID. Anexample SP CSI reporting on PUCCH Activation/Deactivation MAC CE isshown in FIG. 16 . It may have a fixed size of 16 bits. A Serving CellID field may indicate the identity of the Serving Cell for which the MACCE applies. The length of the field may be 5 bits. A BWP ID field mayindicate a UL BWP for which the MAC CE applies as the codepoint of theDCI bandwidth part indicator field. The length of the BWP ID field maybe 2 bits. An S_(i) field may indicate the activation/deactivationstatus of the Semi-Persistent CSI report configuration withincsi-ReportConfigToAddModList. S₀ may refer to the report configurationwhich includes PUCCH resources for SP CSI reporting in the indicated BWPand has the lowest CSI-ReportConfigId within the list with type set tosemiPersistentOnPUCCH, S₁ to the report configuration which includesPUCCH resources for SP CSI reporting in the indicated BWP and has thesecond lowest CSI-ReportConfigId and so on. If the number of reportconfigurations within the list with type set to semiPersistentOnPUCCH inthe indicated BWP is less than i+1, MAC entity may ignore the Si field.The S_(i) field may be set to 1 to indicate that the correspondingSemi-Persistent CSI report configuration may be activated. The S_(i)field may be set to 0 to indicate that the corresponding Semi-PersistentCSI report configuration i may be deactivated. The R field may beReserved bit, set to 0.

A wireless device may be configured with PUCCH carrier switching fortransmission of uplink control information including channel stateinformation (CSI) report. The wireless device may receive configurationparameter(s) indicating a semi-static time/timing pattern. Thetime/timing pattern may indicate timings that a candidate PUCCHcell/carrier, in a plurality of candidate PUCCH cells/carriers, isconfigured as a PUCCH cell. Existing CSI measurement and/or reportingprocesses may lead to inefficient wireless device and wireless networkperformance, e.g., in terms of throughput and/or latency, when thewireless device is configured with semi-static PUCCH cell/carrierswitching. There is a need to enhance the existing CSI measurementand/or reporting processes when the wireless device is configured withsemi-static PUCCH cell/carrier switching. Example embodiments enhancethe existing CSI measurement and/or reporting processes when thewireless device is configured with semi-static PUCCH cell/carrierswitching.

In an example embodiment, a wireless device may receive one or moremessages (e.g., one or more RRC messages) comprising configurationparameters. The configuration parameters may comprise firstconfiguration parameters of a plurality of cells. The plurality of cellsmay be associated with (e.g., provided by) one or more base stations. Inan example, a first plurality of cells (e.g., grouped into a first cellgroup, e.g., a master cell group (MCG)) of the plurality of cells may beprovided by a first base station (e.g., a master base station) and asecond plurality of cells (e.g., grouped into a second cell group, e.g.,a secondary cell group (SCG)) of the plurality of cells may be providedby a second base station (e.g., a secondary base station).

In an example, the plurality of cells may be grouped into one or morePUCCH groups. Each PUCCH group, in the one or more PUCCH groups, maycomprise one or more cells configured with PUCCH resources. Uplinkcontrol information (e.g., HARQ feedback, SR, CSI reports, etc.)associated with a PUCCH group (e.g., associated with the cells of thePUCCH group, e.g., HARQ feedbacks associated with downlink TBs receivedvia cells of the PUCCH group, CSI reports for CSI channel measurementreports for the cells of the PUCCH group, etc.) may be transmitted viaPUCCH resources configured for the one or more cells.

In an example, the one or more PUCCH groups may comprise a first PUCCHgroup and a second PUCCH group. The first PUCCH group may comprise oneor more first cells configured with PUCCH and the second PUCCH group maycomprise one or more second cells configured PUCCH. The one or morefirst cells, in the first PUCCH group, configured with PUCCH maycomprise a SpCell (e.g., primary cell (PCell) or a primary secondarycell (PSCell)). The first PUCCH group may be referred to as a primaryPUCCH group. The second PUCCH group may be referred to as a secondaryPUCCH group. A first secondary cell in one or more second cells of thesecond PUCCH group (e.g., secondary PUCCH group), configured with PUCCH,may be referred to a PUCCH SCell. In an example, the SpCell (e.g., PCellor PSCell) of the primary PUCCH group may be an anchor cell fortransmission of uplink control associated with the primary PUCCH group.In an example, the PUCCH SCell of the secondary PUCCH group may be ananchor cell for transmission of uplink control associated with thesecondary PUCCH group.

In an example as shown in FIG. 17 , a PUCCH group may comprise aplurality of cells/carriers configured with PUCCH. The plurality ofcells/carriers configured with PUCCH may be referred to as candidatePUCCH cells/carriers. The wireless device may determine timings that acandidate PUCCH cell/carrier, in the candidate PUCCH cells/carriers, isconfigured as PUCCH cell based on a time/timing pattern. The wirelessdevice may receive one or more configuration parameters (e.g., RRCparameters) indicating the time/timing pattern. The time/timing patternmay indicate/define timings that a candidate PUCCH cell, in thecandidate PUCCH cells, is configured as PUCCH cell. In an example, awireless device capability parameter may indicate a transitioning time(e.g., a minimum required transitioning time) from a first candidatePUCCH cell to a second candidate PUCCH cell. In an example, thetiming/time pattern configured for the wireless device may be based onthe wireless device capability. The wireless device may transmit uplinkcontrol information (e.g., HARQ feedback, SR, CSI report, etc.) based onradio resources of a PUCCH cell. The timing pattern may be periodicallyrepeated based on a periodicity. In an example, the periodicity may bein a first number of slots. In an example, the periodicity may be basedon a first number of slots associated with a numerology of a referencecell/carrier. In an example, the periodicity may be pre-configuredand/or fixed (e.g., one frame/10 ms) or may be configurable (e.g., basedon receiving an RRC configuration parameter indicating the periodicity).

In an example, a cell in the PUCCH group may be referred to thereference cell. For example, the reference cell may be a SpCell (e.g.,PCell or SPCell) for a primary PUCCH group. In an example, the referencecell may be a PUCCH SCell for a secondary PUCCH group. In an example asshown in FIG. 18 , the time/timing pattern may indicate that acorresponding candidate PUCCH cell, in the candidate PUCCH cells of aPUCCH group, is a configured PUCCH cell for each slot of the referencecell. The time/timing pattern of a PUCCH group may be based on anumerology (e.g., a slot duration) of the reference cell. Each slot ofthe reference cell/carrier may be associated with a candidate PUCCH cell(e.g., a candidate PUCCH cell in a PUCCH group) and the wireless maydetermine the number of slots that a candidate PUCCH cell is configuredas a PUCCH cell based on the slot duration of the reference cell/carrierand the slot duration of the candidate PUCCH cell/carrier. In theexample shown in FIG. 18 , a slot duration of a reference cell/carriermay be two times the slot duration of cell/carrier 1 (e.g., based on anumerology of the reference cell/carrier and a numerology of thecell/carrier 1), may be the same as the slot duration of thecell/carrier 2 (e.g., based on the numerology of the referencecell/carrier and a numerology of the cell/carrier 2), and may be fourtimes the slot duration of cell/carrier 3 (e.g., based on the numerologyof the reference cell/carrier and a numerology of the cell/carrier 3).In the example shown in FIG. 18 , cell/carrier 1 is the configured PUCCHcell for two slots of cell/carrier 1, cell/carrier 2 is the configuredPUCCH cell for one slot of cell/carrier 2, cell/carrier 3 is theconfigured PUCCH cell for four slots of cell/carrier 3, and so on.

In an example as shown in FIG. 19 , configuration parameters of aserving cell (e.g., received via a ServingCellConfig IE), in a pluralityof cells configured for a wireless device, may comprise a csi-MeasConfigIE indicating setting up a CSI-MeasConfig configuration. TheCSI-MeasConfig IE may be used to configure CSI-RS (reference signals)and CSI reports to be transmitted on PUCCH on the serving cell. TheCSI-MeasConfig may comprise a csi-ReportConfigToAddModList IE indicatinga list of one or more CSI report configurations. The one or more CSIreport configurations in the list of the one or more CSI reportconfigurations may comprise a first CSI report configuration and asecond CSI report configuration.

The first CSI report configuration may comprise a first identifier ofthe first CSI report configuration, e.g., may comprise a firstreportConfigId indicating the first identifier of the first CSI reportconfiguration. The first CSI report configuration may comprise a firstcarrier IE indicating a first cell identifier of a serving cell forwhich a CSI-ResourceConfig, associated with the first CSI reportconfiguration and comprising configuration parameters of CSI resources(e.g., reference signals (e.g., CSI-RS reference signals)) for CSIchannel measurements associated with the first CSI report configuration,is configured and may be found. The first CSI report configuration maycomprise a resourcesForChannelMeasurement IE indicating aCSI-ResourceConfigId of a CSI resource configuration comprising theconfiguration parameters of the CSI resources (e.g., reference signals(e.g., CSI-RS reference signals)) for CSI channel measurementsassociated with the first CSI report configuration. The first CSI reportconfiguration may comprise a first reportConfigType parameter indicatingone of a periodic, semiPersistentOnPUCCH, semiPersistentOnPUSCH, andaperiodic CSI reporting types. In an example, the first reportConfigTypeparameter may indicate the semiPersistentOnPUCCH CSI reporting type. Thesemi-PersistentOnPUCCH IE may comprise a reportSlotConfig parameterindicating a periodicity and offset for semi-persistent CSI reports onPUCCH and a pucch-CSI-ResourceList parameter indicating which PUCCHresource to use for reporting on PUCCH. In an example, the firstreportConfigType parameter may indicate the periodic reporting type. Theperiodic IE may comprise a reportSlotConfig parameter indicating aperiodicity and offset for periodic CSI reports on PUCCH and apucch-CSI-ResourceList parameter indicating which PUCCH resource to usefor reporting on PUCCH.

The second CSI report configuration may comprise a second identifier ofthe second CSI report configuration, e.g., may comprise a secondreportConfigId indicating the second identifier of the second CSI reportconfiguration. The second CSI report configuration may comprise a secondcarrier IE indicating a second cell identifier of a serving cell forwhich a CSI-ResourceConfig, associated with the second CSI reportconfiguration and comprising configuration parameters of CSI resources(e.g., reference signals (e.g., CSI-RS reference signals)) for CSIchannel measurements associated with the second CSI reportconfiguration, is configured and may be found. The second CSI reportconfiguration may comprise a resourcesForChannelMeasurement IEindicating a CSI-ResourceConfigId of a CSI resource configurationcomprising the configuration parameters of the CSI resources (e.g.,reference signals (e.g., CSI-RS reference signals)) for CSI channelmeasurements associated with the second CSI report configuration. Thesecond CSI report configuration may comprise a second reportConfigTypeparameter indicating one of a periodic, semiPersistentOnPUCCH,semiPersistentOnPUSCH, and aperiodic CSI reporting types. In an example,the second reportConfigType parameter may indicate thesemiPersistentOnPUCCH CSI reporting type. The semi-PersistentOnPUCCH IEmay comprise a reportSlotConfig parameter indicating a periodicity andoffset for semi-persistent CSI reports on PUCCH and apucch-CSI-ResourceList parameter indicating which PUCCH resource to usefor reporting on PUCCH. In an example, the first reportConfigTypeparameter may indicate the periodic reporting type. The periodic IE maycomprise a reportSlotConfig parameter indicating a periodicity andoffset for periodic CSI reports on PUCCH and a pucch-CSI-ResourceListparameter indicating which PUCCH resource to use for reporting on PUCCH.

In an example as shown in FIG. 20 , the configuration parameters of aserving cell may comprise a CSI-MeasConfig IE comprising acsi-ReportConfigToAddModList IE indicating a list of one or more CSIreport configurations. The one or more CSI report configurations in thelist of the one or more CSI report configurations may comprise a firstCSI report configuration (e.g., CSI-ReportConfig1). The first CSI reportconfiguration may comprise a reportConfigType parameter indicating asemi-persistent CSI reporting type. The wireless device may receive a SPCSI reporting on PUCCH Activation/Deactivation MAC CE indicatingactivation of the first CSI report configuration. An example format ofthe SP CSI reporting on PUCCH Activation/Deactivation MAC CE is shown inFIG. 16 . In response to receiving SP CSI reporting on PUCCHActivation/Deactivation MAC CE indicating activation of the first CSIreport configuration and/or in response to transmitting anacknowledgement indicating successful reception of a transport lock(received via PDSCH) comprising the MAC CE, the wireless device maytransmit SP CSI reports based on the first CSI report configuration.

In an example, the configuration parameters of a serving cell maycomprise a CSI-MeasConfig IE comprising a csi-ReportConfigToAddModListIE indicating a list of one or more CSI report configurations. The oneor more CSI report configurations in the list of the one or more CSIreport configurations may comprise a first CSI report configuration(e.g., CSI-ReportConfig1). The first CSI report configuration maycomprise a reportConfigType parameter indicating a periodic CSIreporting type. In response to receiving the configuration parameters ofthe first CSI report configuration, the wireless device may transmitperiodic CSI reports based on the first CSI report configuration.

In example embodiments as shown in FIG. 21 , FIG. 23 and FIG. 24 , awireless device may receive one or more messages (e.g., one or more RRCmessages) comprising configuration parameters of a plurality of cellscomprising a first cell and a second cell. The configuration parameters(e.g., first configuration parameters of the first cell) may comprisefirst CSI report configuration parameters of a first CSI reportconfiguration for transmission of CSI report via the first cell (e.g.,via PUCCH resources of the first cell). The first CSI reportconfiguration may be one of one or more first CSI report configurations(in a first list of CSI report configurations) that are in aCSI-MeasConfig IE included in configuration parameters of the first cell(e.g., in a servingCellConfig of the first cell). The configurationparameters (e.g., second configuration parameters of the second cell)may comprise second CSI report configuration parameters of one or moresecond CSI report configurations for transmission of CSI report via thesecond cell (e.g., via PUCCH resources of the second cell). The one ormore second CSI report configurations may be among a second list of oneor more second CSI report configurations that are in a CSI-MeasConfig IEincluded in configuration parameters of the second cell (e.g., in aservingCellConfig of the second cell). The first cell and the secondcell may be in a cell group (e.g., a primary PUCCH group or a secondPUCCH group). The first cell and the second cell may be among aplurality of candidate PUCCH cells configured with PUCCH resourceswherein a candidate PUCCH cell, in the candidate PUCCH cells, may be aPUCCH cell based on a time/timing pattern (e.g., a time/timing patternconfigured using a configuration (e.g., RRC) parameter). An example ofthe time/timing pattern indicating timings that the first cell is thePUCCH cell and timings that the second cell is the PUCCH cell is shownin FIG. 21 . The configuration parameters may comprise at least onethird configuration parameter of the time/timing pattern. Thetime/timing pattern may indicate first timings/durations that the firstcell is a PUCCH cell and second timings/durations that the second cellis a PUCCH cell. The reception of the at least one third configurationparameter may indicate that PUCCH cell/carrier switching is configuredfor the wireless device. The at least one third configuration parametermay indicate that PUCCH cell/carrier switching between a plurality ofcells/carriers, comprising the first cell/carrier and the secondcell/carrier, is enabled/configured.

In examples as shown in FIG. 23 and FIG. 24 , the first CSI reportconfiguration parameters of the first CSI report configuration maycomprise a first configuration parameter that may have a first value.Based on receiving the at least one third configuration parameter and/orbased on the PUCCH cell/carrier switching being enabled/configured,e.g., based on PUCCH cell/carrier switching between a plurality ofcells/carriers comprising the first cell/carrier and the secondcell/carrier being configured/enabled, the one or more second CSI reportconfigurations may comprise at least one second CSI report configurationcomprising a second configuration parameter, corresponding to the firstconfiguration parameter, with the same value as the first value of thefirst configuration parameter in the first CSI report configuration. Thefirst configuration parameter and the second configuration parameter maybe for configuring the same parameter for CSI reporting. For example,the first configuration parameter of the first CSI report configurationmay be a first carrier IE indicating a serving cell identifier of aserving cell for CSI channel measurements and the second configurationparameter of the second CSI report configuration may be a second carrierIE indicating the same serving cell identifier. For example, the firstconfiguration parameters of the first CSI report configuration may be afirst resourcesForChannelMeasurement IE indicating a firstCSI-ResourceConfigId of a CSI resource configuration (e.g., CSI resourceconfiguration included in the configuration of the serving cellindicated by the first carrier IE) indicating resources for CSI channelmeasurement. The second configuration parameter of the second CSI reportconfiguration may be a second resourcesForChannelMeasurement IEindicating the same first CSI-ResourceConfigId of the same CSI resourceconfiguration (e.g., same CSI resource configuration included in theconfiguration of the same serving cell). For example, based on receivingthe at least one third configuration parameter and/or based on the PUCCHcell/carrier switching being enabled/configured, e.g., based on PUCCHcell/carrier switching between a plurality of cells/carriers comprisingthe first cell/carrier and the second cell/carrier beingconfigured/enabled, the first CSI report configuration parameters maycomprise a first carrier IE, indicating a first serving cell identifier,and a first resourceFoeChannelMeasurement IE indicating a firstCSI-ResourceConfigId and the one or more second CSI reportconfigurations may comprise at least one second CSI report configurationcomprising a second carrier IE indicating the same first serving cellidentifier and a second resourceFoeChannelMeasurement IE indicate thesame first CSI-ResourceConfigId.

In an example, the first CSI report configuration and the second CSIreport configuration may have the same report type configuration (e.g.,both may be periodic CSI reports or both may be semi-persistent CSIreports).

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the first CSI report configuration, areperiodic CSI reports. The second CSI report configuration parameters maycomprise a second reporting config type parameter indicating that thesecond CSI reports, associated with the second CSI report configuration,are periodic CSI reports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the first CSI report configuration, aresemi-persistent CSI reports. The second CSI report configurationparameters may a second reporting config type parameter indicating thatthe second CSI reports, associated with the second CSI reportconfiguration, are semi-persistent CSI reports. In an example as shownin FIG. 24 , the wireless device may receive a first activation command(e.g., first SP CSI reporting on PUCCH activation/deactivation MAC CE)indicating activation of the first CSI report configuration and mayreceive a second activation command (e.g., a second SP CSI reporting onPUCCH activation/deactivation MAC CE) indicating activation of thesecond CSI report configuration. The wireless device may activate thefirst CSI report configuration (e.g., may start transmission of CSIreports) in response to receiving the first activation command and mayactivate the second CSI report configuration (e.g., may starttransmission of CSI reports) in response to receiving the secondactivation command.

The wireless device may transmit CSI reports based on the first CSIreport configuration parameters and the second CSI report configurationparameters. For example, the wireless device may transmit first CSIreports based on the first CSI report configuration parameters and viathe first cell (via PUCCH resources of the first cell) and second CSIreports based on second CSI report configuration parameters and via thesecond cell (e.g., via PUCCH resources of the second cell).

In an example embodiment, PUCCH cell switching between a plurality ofcells/carriers (e.g., comprising a first cell/carrier and a secondcell/carrier) may be configured/enabled for a wireless device. A firstCSI reporting configuration may be configured for CSI reporting (e.g.,periodic CSI reporting) via PUCCH resources on the first cell/carrier(e.g., via PUCCH resources of an active UL BWP of the firstcell/carrier). The first CSI reporting configuration may comprise afirst configuration parameter with a first value. One or more second CSIreporting configurations may be configured for CSI reporting (e.g.,periodic CSI reporting) via PUCCH resources on the second cell/carrier(e.g., via PUCCH resources of an active UL BWP of the secondcell/carrier). The one or more second CSI reporting configurations maycomprise at least one second CSI reporting configuration comprising asecond configuration parameter, corresponding to the first configurationparameter, with the first value. Based on the PUCCH cell switchingbetween the first cell/carrier and the second cell/carrier beingconfigured/enabled, the one or more second CSI reporting configurationsmay comprise at least one second CSI reporting configuration comprisinga second configuration parameter, corresponding to the firstconfiguration parameter, with the first value.

In an example embodiment, PUCCH cell/carrier switching between aplurality of cells/carriers (e.g., comprising a first cell/carrier and asecond cell/carrier) may be configured/enabled for a wireless device. Afirst CSI reporting configuration may be configured and activated (e.g.,activated based on a MAC CE) for SP CSI reporting via PUCCH resources onthe first cell/carrier (e.g., via PUCCH resources of an active UL BWP ofthe first cell/carrier). The first CSI reporting configuration maycomprise a first configuration parameter with a first value. One or moresecond CSI reporting configurations may be configured and activated(e.g., activated based on one or more MAC CEs) for SP CSI reporting viaPUCCH resources on the second cell/carrier (e.g., via PUCCH resources ofan active UL BWP of the second cell/carrier). The one or more second CSIreporting configurations may comprise at least one second CSI reportingconfiguration comprising a second configuration parameter, correspondingto the first configuration parameter, with the first value. Based on thePUCCH cell switching between the first cell/carrier and the secondcell/carrier being configured/enabled, the one or more second CSIreporting configurations may comprise at least one second CSI reportingconfiguration comprising a second configuration parameter, correspondingto the first configuration parameter, with the first value.

In example embodiments as shown in FIG. 22 , FIG. 25 and FIG. 26 , awireless device may receive one or more messages (e.g., one or more RRCmessages) comprising configuration parameters of a plurality of cellscomprising a first cell and a second cell. The configuration parameters(e.g., first configuration parameters of the first cell) may comprisefirst CSI report configuration parameters of a first CSI reportconfiguration for transmission of CSI report via the first cell (e.g.,via PUCCH resources of the first cell). The first CSI reportconfiguration may be one of one or more first CSI report configurations(e.g., in a first list of CSI report configurations) that are in aCSI-MeasConfig IE included in configuration parameters of the first cell(e.g., in a servingCellConfig of the first cell). The configurationparameters (e.g., second configuration parameters of the second cell)may comprise second CSI report configuration parameters of one or moresecond CSI report configurations for transmission of CSI report via thesecond cell (e.g., via PUCCH resources of the second cell). The one ormore second CSI report configurations may be in a second list of CSIreport configurations in a CSI-MeasConfig IE included in configurationparameters of the second cell (e.g., in a servingCellConfig of thesecond cell). The first cell and the second cell may be in a cell group(e.g., a primary PUCCH group or a second PUCCH group). The first celland the second cell may be among a plurality of candidate PUCCH cellsconfigured with PUCCH resources wherein a candidate PUCCH cell, in thecandidate PUCCH cells, may be a PUCCH cell based on a time/timingpattern (e.g., a time/timing pattern configured using a configuration(e.g., RRC) parameter). An example of the time/timing pattern indicatingtimings that the first cell is the PUCCH cell and timings that thesecond cell is the PUCCH cell is shown in FIG. 22 . The configurationparameters may comprise at least one third configuration parameter ofthe time/timing pattern. The time/timing pattern may indicate firsttimings/durations that the first cell is a PUCCH cell and secondtimings/durations that the second cell is a PUCCH cell. The reception ofthe at least one third configuration parameter may indicate that PUCCHcell/carrier switching is configured for the wireless device. The atleast one third configuration parameter may indicate that PUCCHcell/carrier switching between a plurality of cells, comprising thefirst cell/carrier and the second cell/carrier, is enabled/configured.

In examples as shown in FIG. 25 and FIG. 26 , the first CSI reportconfiguration parameters of the first CSI report configuration maycomprise at least one first parameter (e.g., a first carrier IE)indicating an identifier of a first serving cell configured with CSIresources/reference signals for CSI channel measurement. The first CSIreport configuration parameters may further comprise a firstresourcesForChannelMeasurement IE indicating a firstCSI-ResourceConfigId of a CSI resource configuration (e.g., CSI resourceconfiguration included in the configuration of the serving cellindicated by the first carrier IE) indicating resources for CSI channelmeasurement. Based on receiving the at least one third configurationparameter and/or based on the PUCCH cell/carrier switching beingenabled/configured, e.g., based on PUCCH cell/carrier switching betweena plurality of cells/carriers comprising the first cell/carrier and thesecond cell/carrier being configured/enabled, the one or more second CSIreport configurations may comprise at least one second CSI reportconfiguration comprising at least one second parameter (e.g., a secondcarrier IE) indicating the same identifier of the first serving cellconfigured with CSI resources/reference signals for CSI channelmeasurement. In an example, based on receiving the at least one thirdconfiguration parameter and/or based on the PUCCH cell/carrier switchingbeing enabled/configured, e.g., based on PUCCH cell/carrier switchingbetween a plurality of cells/carriers comprising the first cell/carrierand the second cell/carrier being configured/enabled, the at least onesecond CSI report configuration may further comprise a secondresourcesForChannelMeasurement IE indicating the same firstCSI-ResourceConfigId of the same CSI resource configuration (e.g., sameCSI resource configuration included in the configuration of the sameserving cell).

In an example, the first CSI report configuration and the second CSIreport configuration may have the same report type configuration (e.g.,both may be periodic CSI reports or both may be semi-persistent CSIreports).

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the first CSI report configuration, areperiodic CSI reports. The second CSI report configuration parameters maycomprise a second reporting config type parameter indicating that thesecond CSI reports, associated with the second CSI report configuration,are periodic CSI reports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the first CSI report configuration, aresemi-persistent CSI reports. The second CSI report configurationparameters may a second reporting config type parameter indicating thatthe second CSI reports, associated with the second CSI reportconfiguration, are semi-persistent CSI reports. In an example as shownin FIG. 26 , the wireless device may receive a first activation command(e.g., first SP CSI reporting on PUCCH activation/deactivation MAC CE)indicating activation of the first CSI report configuration and mayreceive a second activation command (e.g., a second SP CSI reporting onPUCCH activation/deactivation MAC CE) indicating activation of thesecond CSI report configuration. The wireless device may activate thefirst CSI report configuration (e.g., may start transmission of CSIreports) in response to receiving the first activation command and mayactivate the second CSI report configuration (e.g., may starttransmission of CSI reports) in response to receiving the secondactivation command.

The wireless device may transmit CSI reports based on the first CSIreport configuration parameters and the second CSI report configurationparameters. For example, the wireless device may transmit first CSIreports based on the first CSI report configuration parameters and viathe first cell (via PUCCH resources of the first cell) and second CSIreports based on second CSI report configuration parameters and via thesecond cell (e.g., via PUCCH resources of the second cell).

In an example embodiment, PUCCH cell/carrier switching between aplurality of cells/carriers (e.g., comprising a first cell/carrier and asecond cell/carrier) may be configured/enabled for a wireless device. Afirst CSI reporting configuration may be configured for CSI reporting(e.g., periodic CSI reporting) via PUCCH resources on the firstcell/carrier (e.g., via PUCCH resources of an active UL BWP of the firstcell). The first CSI reporting configuration may indicate (e.g., maycomprise a carrier IE indicating) a first serving cell comprising CSIresources for channel measurement for the CSI reports. The first CSIreporting configuration may indicate a first identifier of a first CSIresource configuration of the first serving cell for channel measurementfor the CSI reports. One or more second CSI reporting configurations maybe configured for CSI reporting (e.g., periodic CSI reporting) via PUCCHresources on the second cell (e.g., via PUCCH resources of an active ULBWP of the second cell). The one or more second CSI reportingconfigurations may comprise at least one second CSI reportingconfiguration indicating (e.g., comprising a carrier IE indicating) thefirst serving cell and/or indicating the first identifier of the firstCSI resource configuration of the first serving cell. Based on the PUCCHcell/carrier switching between the first cell/carrier and the secondcell/carrier being configured/enabled, the one or more second CSIreporting configurations may comprise at least one second CSI reportingconfiguration indicating (e.g., comprising a carrier IE indicating) thefirst serving cell and/or indicating the first identifier of the firstCSI resource configuration of the first serving cell.

In an example embodiment, PUCCH cell/carrier switching between aplurality of cells/carriers (e.g., comprising a first cell/carrier and asecond cell/carrier) may be configured/enabled for a wireless device. Afirst CSI reporting configuration may be configured and activated (e.g.,activated based on a MAC CE) for SP CSI reporting via PUCCH resources onthe first cell/carrier (e.g., via PUCCH resources of an active UL BWP ofthe first cell). The first CSI reporting configuration may indicate(e.g., may comprise a carrier IE indicating) a first serving cellcomprising CSI resources for channel measurement for the CSI reports.The first CSI reporting configuration may indicate a first identifier ofa first CSI resource configuration of the first serving cell for channelmeasurement for the CSI reports. One or more second CSI reportingconfigurations may be configured and activated (e.g., activated based onone or more MAC CEs) for SP CSI reporting via PUCCH resources on thesecond cell (e.g., via PUCCH resources of an active UL BWP of the secondcell). The one or more second CSI reporting configurations may compriseat least one second CSI reporting configuration indicating (e.g.,comprising a carrier IE indicating) the first serving cell and/orindicating the first identifier of the first CSI resource configurationof the first serving cell for channel measurement for the CSI reports.Based on the PUCCH cell switching between the first cell/carrier and thesecond cell/carrier being configured/enabled, the one or more second CSIreporting configurations may comprise at least one second CSI reportingconfiguration indicating (e.g., comprising a carrier IE indicating) thefirst serving cell and/or indicating the first identifier of the firstCSI resource configuration of the first serving cell for channelmeasurement for the CSI reports.

In example embodiments as shown in FIG. 27 and FIG. 28 , a wirelessdevice may receive one or more messages (e.g., one or more RRC messages)comprising configuration parameters of a plurality of cells comprising afirst cell and a second cell. The configuration parameters (e.g., firstconfiguration parameters of the first cell) may comprise first CSIreport configuration parameters of a first CSI report configuration fortransmission of CSI report via the first cell (e.g., via PUCCH resourcesof the first cell). The first cell and the second cell may be among aplurality of candidate PUCCH cells configured with PUCCH resourceswherein a candidate PUCCH cell, in the candidate PUCCH cells, may be aPUCCH cell based on a time/timing pattern (e.g., a time/timing patternconfigured using a configuration (e.g., RRC) parameter). An example ofthe time/timing pattern indicating timings that the first cell is thePUCCH cell and timings that the second cell is the PUCCH cell is shownin FIG. 27 . The configuration parameters may comprise at least oneconfiguration parameter of the time/timing pattern. The time/timingpattern may indicate a first timing/time duration that the first cell isa PUCCH cell and a second timing/time duration that the second cell is aPUCCH cell. The reception of the at least one configuration parametermay indicate that PUCCH cell/carrier switching is configured for thewireless device. The at least one configuration parameter may indicatethat PUCCH cell/carrier switching between a plurality of cells,comprising the first cell/carrier and the second cell/carrier, isenabled/configured.

The wireless device may determine that a first scheduled timing of afirst CSI report overlaps and/or is within the first timing/timeduration that the first cell is the PUCCH cell and may determine that asecond scheduled timing of a second CSI report overlaps (e.g., in one ormore symbols) with the second timing/time duration that the second cellis the PUCCH cell. Based on the first scheduled timing of the first CSIreport overlapping and/or being within the first timing/time durationthat the first cell is the PUCCH cell, the wireless device may transmitthe first CSI report via the first cell (e.g., via first PUCCH resourcesof the first cell) and in the first scheduled timing of the first CSIreport. Based on the second scheduled timing of the second CSI reportoverlapping (e.g., in one or more symbols) with the second timing/timeduration that the second cell is the PUCCH cell, the wireless device maytransmit the second CSI report via the second cell (e.g., in the secondscheduled timing or in a third timing that is based on the secondscheduled timing and via second PUCCH resources of the second cell).

In an example, the wireless device may determine the first scheduledtiming of the first CSI report based on the first CSI reportconfiguration parameters. For example, the first CSI reportconfiguration parameters may comprise a first reportSlotConfig parameterindicating a first periodicity and slot offset. The first scheduledtiming of the first CSI report may be based on the first periodicity andslot offset indicated by the first reportSlotConfig parameter. Thewireless device may determine the first scheduled timing based on thefirst periodicity and slot offset indicated by the firstreportSlotConfig parameter. In an example, the first scheduled timing ofthe first CSI report may further be based on a subcarrier spacing (SCS)configuration of an active uplink BWP (e.g., active uplink BWP of thefirst cell) configured with PUCCH resources to be used for transmissionof the first CSI report. In an example, the wireless device maydetermine the first scheduled timing further based on the SCSconfiguration of an active uplink BWP (e.g., active uplink BWP of thefirst cell) configured with PUCCH resources to be used for transmissionof the first CSI report. In an example, the second scheduled timing ofthe second CSI report may be based on the first CSI report configurationparameters. For example, the second scheduled timing may be based on thefirst periodicity and slot offset indicated by the firstreportSlotConfig parameter. In an example, the second scheduled timingmay further be based on SCS configuration of an active uplink BWP (e.g.,active uplink BWP of the first cell or active uplink BWP of the secondcell). The wireless device may determine the second scheduled timingbased on the first periodicity and slot offset indicated by the firstreportSlotConfig parameter and/or based on the SCS configuration.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, are periodic CSIreports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, aresemi-persistent (SP) CSI reports. The wireless device may receive anactivation command (e.g., a SP CSI reporting on PUCCHactivation/deactivation MAC CE) indicating activation of the first CSIreport configuration. Transmission of the CSI reports may be after/inresponse to receiving the activation command.

In an example, the wireless device may transmit the first CSI reportbased on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). In an example, transmitting the secondCSI report via the second cell (e.g., in the second scheduled timing ofthe second CSI report or in a third timing that may be based on thesecond scheduled timing) may be based on the second CSI reportconfiguration parameters. In an example, the second CSI reportconfiguration parameters may comprise a second reportSlotConfigparameter indicating a second periodicity and slot offset and thewireless device may determine the second scheduled timing or the thirdtiming based on the second periodicity and slot offset. In an example,the wireless device may determine the second scheduled timing or thethird timing further based on a SCS configuration of the second cell(e.g., active BWP of the second cell).

In an example, the wireless device may determine a first plurality oftimings comprising the first scheduled timing and the second scheduledtiming based on the first CSI report configuration parameters (e.g.,based on the first reportSlotConfig parameter) and may determine secondplurality of timings comprising the third timing based on the second CSIreport configuration parameters (e.g., based on the secondreportSlotConfig parameter). The third timing may be one of the secondplurality of timings that is adjacent to and/or after the secondscheduled timing.

In an example, transmitting the second CSI report may further be basedon one or more configuration parameters (e.g., a carrier IE indicatingthe serving cell identifier of a serving cell comprising CSIresources/reference signals for which channel measurement takes placeand/or a CSI resource configuration ID of the CSI resources/referencesignals) of the first CSI report configuration parameters having thesame values as corresponding configuration parameters in the second CSIreport configuration parameters.

In an example embodiment, for periodic CSI reporting configured for afirst cell, if during a time window comprising a scheduled timing of aCSI report, a PUCCH cell is switched from the first cell to a secondcell, the wireless device may transmit the CSI report via the secondcell.

In an example embodiment, for semi-persistent CSI reporting on PUCCHconfigured and activated for the first cell, if during a time windowcomprising a scheduled timing of a SP CSI report, a PUCCH cell isswitched from the first cell to a second cell, the wireless device maytransmit the SP CSI report via the second cell.

In example embodiments as shown in FIG. 29 and FIG. 30 , a wirelessdevice may receive one or more messages (e.g., one or more RRC messages)comprising configuration parameters of a plurality of cells comprising afirst cell and a second cell. The configuration parameters (e.g., firstconfiguration parameters of the first cell) may comprise first CSIreport configuration parameters of a first CSI report configuration fortransmission of CSI report via the first cell (e.g., via PUCCH resourcesof the first cell). The first cell and the second cell may be among aplurality of candidate PUCCH cells configured with PUCCH resourceswherein a candidate PUCCH cell, in the candidate PUCCH cells, may be aPUCCH cell based on a time/timing pattern (e.g., a time/timing patternconfigured using a configuration (e.g., RRC) parameter). An example ofthe time/timing pattern indicating timings that the first cell is thePUCCH cell and timings that the second cell is the PUCCH cell is shownin FIG. 29 . The configuration parameters may comprise at least oneconfiguration parameter of the time/timing pattern. The time/timingpattern may indicate a first timing/time duration that the first cell isa PUCCH cell and a second timing/time duration that the second cell is aPUCCH cell. The reception of the at least one configuration parametermay indicate that PUCCH cell/carrier switching is configured for thewireless device. The at least one configuration parameter may indicatethat PUCCH cell/carrier switching between a plurality of cells,comprising the first cell/carrier and the second cell/carrier, isenabled/configured.

The wireless device may determine that a first scheduled timing of afirst CSI report overlaps and/or is within the first timing/timeduration that the first cell is the PUCCH cell and may determine that asecond scheduled timing of a second CSI report overlaps (e.g., in one ormore symbols) with the second timing/time duration that the second cellis the PUCCH cell. Based on the first scheduled timing of the first CSIreport overlapping and/or being within the first timing/time durationthat the first cell is the PUCCH cell, the wireless device may transmitthe first CSI report via the first cell (e.g., via first PUCCH resourcesof the first cell) and in the first scheduled timing of the first CSIreport. Based on the second scheduled timing of the second CSI reportoverlapping (e.g., in one or more symbols) with the second timing/timeduration that the second cell is the PUCCH cell, the wireless device maydrop the second CSI report.

In an example, the wireless device may determine the first scheduledtiming of the first CSI report based on the first CSI reportconfiguration parameters. For example, the first CSI reportconfiguration parameters may comprise a first reportSlotConfig parameterindicating a first periodicity and slot offset. The first scheduledtiming of the first CSI report may be based on the first periodicity andslot offset indicated by the first reportSlotConfig parameter. Thewireless device may determine the first scheduled timing based on thefirst periodicity and slot offset indicated by the firstreportSlotConfig parameter. In an example, the first scheduled timing ofthe first CSI report may further be based on a subcarrier spacing (SCS)configuration of an active uplink BWP (e.g., active uplink BWP of thefirst cell) configured with PUCCH resources to be used for transmissionof the first CSI report. In an example, the wireless device maydetermine the first scheduled timing further based on the SCSconfiguration of an active uplink BWP (e.g., active uplink BWP of thefirst cell) configured with PUCCH resources to be used for transmissionof the first CSI report. In an example, the second scheduled timing ofthe second CSI report may be based on the first CSI report configurationparameters. For example, the second scheduled timing may be based on thefirst periodicity and slot offset indicated by the firstreportSlotConfig parameter. In an example, the second scheduled timingmay further be based on SCS configuration of an active uplink BWP (e.g.,active uplink BWP of the first cell or active uplink BWP of the secondcell). The wireless device may determine the second scheduled timingbased on the first periodicity and slot offset indicated by the firstreportSlotConfig parameter and/or based on the SCS configuration.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, are periodic CSIreports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, aresemi-persistent (SP) CSI reports. The wireless device may receive anactivation command (e.g., a SP CSI reporting on PUCCHactivation/deactivation MAC CE) indicating activation of the first CSIreport configuration. Transmission of the CSI reports may be after/inresponse to receiving the activation command.

In an example, the wireless device may transmit the first CSI reportbased on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). In an example, dropping the second CSIreport may further be based on one or more configuration parameters(e.g., a carrier IE indicating the serving cell identifier of a servingcell comprising CSI resources/reference signals for which channelmeasurement takes place and/or a CSI resource configuration ID of theCSI resources/reference signals) of the first CSI report configurationparameters having different values from corresponding configurationparameters in the second CSI report configuration parameters.

In an example embodiment, for periodic CSI reporting configured for afirst cell, if during a time window comprising a scheduled timing of aCSI report, a PUCCH cell is switched from the first cell to a secondcell, the wireless device may drop the CSI report.

In an example embodiment, for semi-persistent CSI reporting on PUCCHconfigured and activated for the first cell, if during a time windowcomprising a scheduled timing of a SP CSI report, a PUCCH cell isswitched from the first cell to a second cell, the wireless device maydrop the SP CSI report.

In example embodiments as shown in FIG. 31 and FIG. 32 , a wirelessdevice may receive one or more messages (e.g., one or more RRC messages)comprising configuration parameters of a plurality of cells comprising afirst cell and a second cell. The configuration parameters (e.g., firstconfiguration parameters of the first cell) may comprise first CSIreport configuration parameters of a first CSI report configuration fortransmission of CSI report via the first cell (e.g., via PUCCH resourcesof the first cell). The first cell and the second cell may be among aplurality of candidate PUCCH cells configured with PUCCH resourceswherein a candidate PUCCH cell, in the candidate PUCCH cells, may be aPUCCH cell based on a time/timing pattern (e.g., a time/timing patternconfigured using a configuration (e.g., RRC) parameter). An example ofthe time/timing pattern indicating timings that the first cell is thePUCCH cell and timings that the second cell is the PUCCH cell is shownin FIG. 31 . The configuration parameters may comprise at least oneconfiguration parameter of the time/timing pattern. The time/timingpattern may indicate a first timing/time duration that the first cell isa PUCCH cell and a second timing/time duration that the second cell is aPUCCH cell. The reception of the at least one configuration parametermay indicate that PUCCH cell/carrier switching is configured for thewireless device. The at least one configuration parameter may indicatethat PUCCH cell/carrier switching between a plurality of cells,comprising the first cell/carrier and the second cell/carrier, isenabled/configured.

The wireless device may determine that a first scheduled timing of afirst CSI report overlaps and/or is within the first timing/timeduration that the first cell is the PUCCH cell. Based on the firstscheduled timing of the first CSI report overlapping and/or being withinthe first timing/time duration that the first cell is the PUCCH cell,the wireless device may transmit the first CSI report via the first cell(e.g., via first PUCCH resources of the first cell) and in the firstscheduled timing of the first CSI report. The wireless device maysuspend CSI reporting (e.g., CSI reporting associated with the first CSIreport configuration) during the second timing/time duration that thesecond cell is the PUCCH cell.

In an example, the wireless device may determine the first scheduledtiming of the first CSI report based on the first CSI reportconfiguration parameters. For example, the first CSI reportconfiguration parameters may comprise a first reportSlotConfig parameterindicating a first periodicity and slot offset. The first scheduledtiming of the first CSI report may be based on the first periodicity andslot offset indicated by the first reportSlotConfig parameter. Thewireless device may determine the first scheduled timing based on thefirst periodicity and slot offset indicated by the firstreportSlotConfig parameter. In an example, the first scheduled timing ofthe first CSI report may further be based on a subcarrier spacing (SCS)configuration of an active uplink BWP (e.g., active uplink BWP of thefirst cell) configured with PUCCH resources to be used for transmissionof the first CSI report.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, are periodic CSIreports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports, associated with the CSI report configuration, aresemi-persistent (SP) CSI reports. The wireless device may receive anactivation command (e.g., a SP CSI reporting on PUCCHactivation/deactivation MAC CE) indicating activation of the first CSIreport configuration. Transmission of the CSI reports may be after/inresponse to receiving the activation command.

In an example, the wireless device may transmit the first CSI reportbased on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). In an example, suspending the CSIreporting, during the second timing/time duration that the second cellis the PUCCH cell, may further be based on one or more configurationparameters (e.g., a carrier IE indicating the serving cell identifier ofa serving cell comprising CSI resources/reference signals for whichchannel measurement takes place and/or a CSI resource configuration IDof the CSI resources/reference signals) of the first CSI reportconfiguration parameters having different values from correspondingconfiguration parameters in the second CSI report configurationparameters.

In an example embodiment, for periodic CSI reporting configured for afirst cell, if PUCCH cell is switched from the first cell to a secondcell during a time window, the wireless device may suspend the CSIreports during the time window.

In an example embodiment, for semi-persistent CSI reporting on PUCCHconfigured and activated for the first cell, if PUCCH cell is switchedfrom the first cell to a second cell during a time window, the wirelessdevice may suspend the SP CSI reports during the time window.

In example embodiments as shown in FIG. 33 , a wireless may receive oneor more messages (e.g., one or more RRC messages) comprisingconfiguration parameters. The configuration parameters may comprisefirst CSI report configuration parameters of a first CSI reportconfiguration for transmission of semi-persistent (SP) CSI report (e.g.,via PUCCH resources of a first cell). The first CSI report configurationparameters may comprise a report config type parameter indicating thatCSI reports, associated with the first CSI report configuration, are SPCSI reports. The configuration parameters may comprise at least oneconfiguration parameter of a time/timing pattern indicating timings thateach candidate PUCCH cell, in a plurality of candidate PUCCH cells, is aPUCCH cell. Each candidate PUCCH cell, in the plurality of candidatePUCCH cells, may be configured with PUCCH resources and the wirelessdevice may determine, based on the time/timing pattern indicated by theat least one configuration parameter, timings that each candidate PUCCHcell, in the plurality of candidate PUCCH cells, is a PUCCH cell. Thereception of the at least one configuration parameter may indicate thatPUCCH cell/carrier switching is configured for the wireless device. Theat least one configuration parameter may indicate that PUCCHcell/carrier switching between the plurality of candidate PUCCH cells isenabled/configured.

The wireless device may receive, via a PDSCH, a transport blockcomprising a SP CSI reporting on PUCCH Activation/Deactivation MAC CEindicating activation of the first CSI report configuration. The SP CSIreporting on PUCCH activation/deactivation MAC CE may comprise a fieldwith a value indicating that the first SP CSI report configuration isactivated. In response to receiving the transport block comprising theSP CSI reporting on PUCCH Activation/Deactivation MAC CE, the wirelessdevice may start transmitting SP CSI reports associated with the CSIreport configuration.

In an example embodiment, the wireless device may determine a timing ofa first slot based on subcarrier spacing (SCS) configuration for thePUCCH of a cell, in the plurality of cells, that is the PUCCH cell atthe time that the transport block comprising the SP CSI reporting onPUCCH Activation/Deactivation MAC CE is received. Transmission of the SPCSI reports may be after the first slot. The wireless device maytransmit SP CSI reports after the first slot and based on the first CSIreport configuration parameters.

In an example embodiment, a wireless device may perform semi-persistentCSI reporting on the PUCCH applied starting from the first slot that isafter slot n+3N_(slot) ^(subframe,μ) when the wireless would transmit aPUCCH with HARQ-ACK information in slot n corresponding to the PDSCHcarrying the activation command (e.g., SP CSI reporting on PUCCHactivation MAC CE) where μ is the SCS configuration for the PUCCH of thecell that is the PUCCH cell at the time that PDSCH is received in casePUCCH carrier switching is configured/enabled.

In an example embodiment, the wireless device may determine a timing ofa first slot based on subcarrier spacing (SCS) configuration for thePUCCH of a cell, in the plurality of cells, that is the PUCCH cell atthe time that an acknowledgement associated with the transport blockcomprising the SP CSI reporting on PUCCH Activation/Deactivation MAC CEis transmitted. Transmission of the SP CSI reports may be after thefirst slot. The wireless device may transmit SP CSI reports after thefirst slot and based on the first CSI report configuration parameters.

In an example embodiment, a wireless device may perform semi-persistentCSI reporting on the PUCCH applied starting from the first slot that isafter slot n+3N_(slot) ^(subframe,μ) when the wireless would transmit aPUCCH with HARQ-ACK information in slot n corresponding to the PDSCHcarrying the activation command (e.g., SP CSI reporting on PUCCHactivation MAC CE) where μ is the SCS configuration for the PUCCH of thecell that is the PUCCH cell at the time that an acknowledgementassociated with the activation command is transmitted in case PUCCHcarrier switching is configured/enabled.

In an example embodiment, the wireless device may determine a timing ofa first slot based on subcarrier spacing (SCS) configuration for thePUCCH of a primary cell (PCell) or a primary secondary cell (PSCell,e.g., in case the transport block is received via a cell in thesecondary cell group (SCG)), or a PUCCH SCell (e.g., in case thetransport block is received via a cell in a secondary PUCCH group) or areference cell. Transmission of the SP CSI reports may be after thefirst slot. The wireless device may transmit SP CSI reports after thefirst slot and based on the first CSI report configuration parameters.

In an example embodiment, a wireless device may perform semi-persistentCSI reporting on the PUCCH applied starting from the first slot that isafter slot n+3N_(slot) ^(subframe,μ) when the wireless would transmit aPUCCH with HARQ-ACK information in slot n corresponding to the PDSCHcarrying the activation command (e.g., SP CSI reporting on PUCCHactivation MAC CE) where μ is the SCS configuration for the PUCCH of thePCell/PSCell/PUCCH SCell/a reference cell in case PUCCH carrierswitching is configured/enabled].

In an example embodiment as shown in FIG. 34 , a wireless device mayreceive one or more messages (e.g., one or more RRC messages) comprisingconfiguration parameters. The configuration parameters may comprise CSIreport configuration parameters of a CSI report configuration fortransmission of CSI report (e.g., via PUCCH resources of a first cell).The CSI report configuration parameters may comprise a report configtype parameter indicating that CSI reports, associated with the CSIreport configuration, are periodic CSI report or indicating that CSIreports, associated with the CSI report configuration, are SP CSIreports. The configuration parameters may comprise at least oneconfiguration parameter of a time/timing pattern indicating timings thateach candidate PUCCH cell, in a plurality of candidate PUCCH cells, is aPUCCH cell. Each candidate PUCCH cell, in the plurality of candidatePUCCH cells, may be configured with PUCCH resources and the wirelessdevice may determine, based on the time/timing pattern indicated by theat least one configuration parameter, timings that each candidate PUCCHcell, in the plurality of candidate PUCCH cells, is a PUCCH cell. Thereception of the at least one configuration parameter may indicate thatPUCCH cell/carrier switching is configured for the wireless device. Theat least one configuration parameter may indicate that PUCCHcell/carrier switching between the plurality of candidate PUCCH cells isenabled/configured.

The wireless device may determine a timing of a CSI report, associatedwith the CSI report configuration, based on subcarrier spacing (SCS) ofa first candidate PUCCH cell in the plurality of candidate PUCCH cells.The wireless device may transmit the CSI report in the determinedtiming. In an example embodiment, the first cell may be the cell viawhich the CSI report is scheduled to be transmitted.

The wireless device may determine a timing of a CSI report, associatedwith the CSI report configuration, based on subcarrier spacing (SCS) ofa first candidate PUCCH cell in the plurality of candidate PUCCH cells.The wireless device may transmit the CSI report in the determinedtiming. In an example embodiment, the first cell may be a primary cell(PCell) or a primary secondary cell (PSCell, e.g., in case the CSIreport is transmitted via a cell in the secondary cell group (SCG)), ora PUCCH SCell (e.g., in case the CSI report is transmitted via a cell ina secondary PUCCH group) or a reference cell.

In an example embodiment as shown in FIG. 34 , a wireless device mayreceive one or more messages (e.g., one or more RRC messages) comprisingconfiguration parameters. The configuration parameters may comprisefirst CSI report configuration parameters of a first CSI reportconfiguration for transmission of CSI report via a first cell (e.g., viaPUCCH resources of a first cell). The first CSI report configurationparameters may comprise a report config type parameter indicating thatCSI reports, associated with the first CSI report configuration, are SPCSI reports or indicating that CSI report, associated with the first CSIreport configuration, are periodic CSI reports. The configurationparameters may comprise at least one configuration parameter of atime/timing pattern indicating timings that each candidate PUCCH cell,in a plurality of candidate PUCCH cells, is a PUCCH cell. Each candidatePUCCH cell, in the plurality of candidate PUCCH cells, may be configuredwith PUCCH resources and the wireless device may determine, based on thetime/timing pattern indicated by the at least one configurationparameter, timings that each candidate PUCCH cell, in the plurality ofcandidate PUCCH cells, is a PUCCH cell. The reception of the at leastone configuration parameter may indicate that PUCCH cell/carrierswitching is configured for the wireless device. The at least oneconfiguration parameter may indicate that PUCCH cell/carrier switchingbetween the plurality of candidate PUCCH cells is enabled/configured.The plurality of candidate PUCCH cells may comprise a first cell and asecond cell.

The wireless device may determine a first scheduled timing of a firstCSI report. The wireless device may determine (e.g., based on thetime/timing pattern indicated by the at least one configurationparameter) that the first scheduled timing of the first CSI report iswhile the first cell is the PUCCH cell. The wireless device may performCSI channel measurements based on the first CSI report configurationwhile the second cell is a PUCCH cell. The wireless device may performCSI channel measurements based on the first CSI report configurationregardless of whether the first cell is the PUCCH cell or the secondcell is the PUCCH cell when performing the CSI channel measurements.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters, second CSIreport configuration parameters and at least one third configurationparameter of a timing pattern. The first CSI report configurationparameters may be of a first CSI report configuration for transmissionof CSI reports via a first cell (e.g., via physical uplink controlchannel (PUCCH) resources of the first cell). The second CSI reportconfiguration parameters may be of one or more second CSI reportconfigurations for transmission of CSI reports via a second cell (e.g.,via PUCCH resources of a second cell). The at least one thirdconfiguration parameter may be of a timing pattern indicating firsttimings/durations that the first cell is a PUCCH cell and secondtimings/durations that the second cell is the PUCCH cell. The at leastone third configuration parameter may indicate that PUCCH cell/carrierswitching between a plurality of cells, comprising the first cell andthe second cell, is enabled/configured. The first CSI reportconfiguration parameters may comprise a first configuration parameterwith a first value. Based on receiving the at least one thirdconfiguration parameter, the one or more second CSI reportconfigurations may comprise at least one second CSI report configurationcomprising a second configuration parameter, corresponding to the firstconfiguration parameter, with the first value. Based on the PUCCHcell/carrier switching between the first cell and the second cell beingenabled/configured, the one or more second CSI report configurations maycomprise at least one second CSI report configuration comprising asecond configuration parameter, corresponding to the first configurationparameter, with the first value.

In an example, the at least one third configuration parameter mayindicate that PUCCH carrier switching between the first cell and thesecond cell is enabled/configured.

In an example, the wireless device may receive first CSI measurementconfiguration parameters, wherein the first CSI report configurationparameters may be included in the first received CSI measurementconfiguration parameters. The wireless device may receive second CSImeasurement configuration parameters, wherein the second CSI reportconfiguration parameters may be included in the second received CSImeasurement configuration parameters. In an example, the wireless devicemay receive first configuration parameters of the first cell, whereinthe first CSI measurement configuration parameters may be included inthe first configuration parameters of the first cell. The wirelessdevice may receive second configuration parameters of the second cell,wherein the second CSI measurement configuration parameters may beincluded in the second configuration parameters of the second cell.

In an example, the first configuration parameter may indicate anidentifier of a first serving cell configured with CSIresources/reference signals for channel measurement. The secondconfiguration parameter indicates the identifier of the first servingcell configured with CSI resources/reference signals for channelmeasurement. In an example, the first configuration parameter may be afirst carrier information element (IE) indicating a serving cell indexof the first serving cell configured with CSI resources/referencesignals for channel measurement. The second configuration parameter maybe a second carrier IE indicating the serving cell index of the firstserving cell configured with CSI resources/reference signals for channelmeasurement. In an example, the first CSI report configurationparameters may further comprise a third parameter indicating anidentifier of a first CSI resource configuration of the CSIresources/reference signals. Based on receiving the at least one thirdconfiguration parameter, the one or more second CSI reportconfigurations may comprise at least one second CSI report configurationcomprising a fourth parameter indicating the identifier of the first CSIresource configuration of the CSI resources/reference signals. Based onthe PUCCH carrier switching between the first cell and the second cellbeing enabled/configured, the one or more second CSI reportconfigurations may comprise at least one second CSI report configurationcomprising a fourth parameter indicating the identifier of the first CSIresource configuration of the CSI resources/reference signals.

In an example, the first CSI report configuration parameters comprise afirst report config type parameter indicating that the CSI reports areperiodic CSI reports. The second CSI report configuration parameters maycomprise a second report config type parameter indicating that the CSIreports are periodic CSI reports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are semi-persistent (SP) CSI reports for transmission via PUCCH.The second CSI report configuration parameters comprise a second reportconfig type parameter indicating that the CSI reports are SP CSI reportsfor transmission via PUCCH. In an example, the wireless device mayreceive a first activation command indicating activation of the firstCSI report configuration. The wireless device may receive one or moresecond activation commands indicating activation of the one or moresecond CSI report configurations. In an example, the first activationcommand may be a first SP CSI reporting on PUCCH Activation/DeactivationMAC CE. The one or more second activation commands may be one or moresecond SP CSI reporting on PUCCH Activation/Deactivation MAC CEs.

In an example, transmitting the one or more CSI reports may be viaPUCCH.

In an example, the first cell is a primary cell (PCell) or a primarysecondary cell (PSCell) or a PUCCH secondary cell.

In an example, the first cell may be a secondary cell.

In an example, the second cell is a primary cell (PCell) or a primarysecondary cell (PSCell) or a PUCCH secondary cell.

In an example, the second cell may be a secondary cell.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters, second CSIreport configuration parameters and at least one third configurationparameter of a timing pattern. The first CSI report configurationparameters may be of a first CSI report configuration for transmissionof CSI reports via a first cell (e.g., via physical uplink controlchannel (PUCCH) resources of the first cell). The second CSI reportconfiguration parameters may be of one or more second CSI reportconfigurations for transmission of CSI reports via a second cell (e.g.,via PUCCH resources of a second cell). The at least one thirdconfiguration parameter may be of a timing pattern indicating firsttimings/durations that the first cell is a PUCCH cell and secondtimings/durations that the second cell is the PUCCH cell. The at leastone third configuration parameter may indicate that PUCCH cell/carrierswitching between a plurality of cells, comprising the first cell andthe second cell, is enabled/configured. The first CSI reportconfiguration parameters may comprise at least one first parameterindicating an identifier of a first serving cell configured with CSIresources/reference signals for channel measurement. Based on receivingthe at least one third configuration parameter, the one or more secondCSI report configurations may comprise at least one second CSI reportconfiguration comprising at least one second parameter indicating theidentifier of the first serving cell configured with the CSIresources/reference signals for channel measurement. Based on the PUCCHcell/carrier switching between the first cell and the second cell beingenabled/configured, the one or more second CSI report configurations maycomprise at least one second CSI report configuration comprising atleast one second parameter indicating the identifier of the firstserving cell configured with the CSI resources/reference signals forchannel measurement. The wireless device may transmit one or more CSIreports based on the first CSI report configuration parameters and thesecond CSI report configuration parameters.

In an example, the at least one third configuration parameter mayindicate that PUCCH carrier switching between the first cell and thesecond cell is enabled/configured.

In an example, the wireless device may receive first CSI measurementconfiguration parameters, wherein the first CSI report configurationparameters may be included in the first received CSI measurementconfiguration parameters. The wireless device may receive second CSImeasurement configuration parameters, wherein the second CSI reportconfiguration parameters may be included in the second received CSImeasurement configuration parameters. In an example, the wireless devicemay receive first configuration parameters of the first cell, whereinthe first CSI measurement configuration parameters may be included inthe first configuration parameters of the first cell. The wirelessdevice may receive second configuration parameters of the second cell,wherein the second CSI measurement configuration parameters may beincluded in the second configuration parameters of the second cell.

In an example, the first CSI report configuration parameters furthercomprise at least one third parameter indicating an identifier of afirst CSI resource configuration of the CSI resources/reference signals.Based on receiving the at least one third configuration parameter, theone or more second CSI report configurations comprise at least onesecond CSI report configuration comprising at least one fourth parameterindicating the identifier of the first CSI resource configuration of theCSI resources/reference signals. Based on the PUCCH carrier switchingbetween the first cell and the second cell being enabled/configured, theone or more second CSI report configurations may comprise at least onesecond CSI report configuration comprising at least one fourth parameterindicating the identifier of the first CSI resource configuration of theCSI resources/reference signals.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are periodic CSI reports. The second CSI report configurationparameters may comprise a second report config type parameter indicatingthat the CSI reports are periodic CSI reports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are semi-persistent (SP) CSI reports for transmission via PUCCH.The second CSI report configuration parameters may comprise a secondreport config type parameter indicating that the CSI reports are SP CSIreports for transmission via PUCCH. In an example, the wireless devicemay receive a first activation command indicating activation of thefirst CSI report configuration. The wireless device may receive one ormore second activation commands indicating activation of the one or moresecond CSI report configurations. In an example, the first activationcommand may be a first SP CSI reporting on PUCCH Activation/DeactivationMAC CE. The one or more second activation commands may be one or moresecond SP CSI reporting on PUCCH Activation/Deactivation MAC CEs.

In an example, transmitting the one or more CSI reports may be viaPUCCH.

In an example, the first cell may be a primary cell (PCell) or a primarysecondary cell (PSCell) or a PUCCH secondary cell.

In an example, the first cell may be a secondary cell.

In an example, the second cell may be a primary cell (PCell) or aprimary secondary cell (PSCell) or a PUCCH secondary cell.

In an example, the second cell may be a secondary cell.

In an example, the at least one first parameter may comprise a firstcarrier IE indicating a serving cell index of the first serving cellconfigured with CSI resources/reference signals for channel measurement.

In an example, the at least one second parameter may comprise a secondcarrier IE indicating a serving cell index of the first serving cellconfigured with CSI resources/reference signals for channel measurement.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The first CSI reportconfiguration parameters may be of a first CSI report configuration fortransmission of CSI reports via a first cell (e.g., via PUCCH resourcesof a first cell). The timing pattern may indicate a first timing/timeduration that the first cell is a physical uplink control channel(PUCCH) cell and a second timing/time duration that a second cell is thePUCCH cell. The wireless device may transmit a first CSI report, via thefirst cell, in a first scheduled timing of the first CSI report basedon/in response to the first scheduled timing overlapping with the firsttiming/time duration. The wireless device may transmit a second CSIreport, via the second cell, in a second scheduled timing of the secondCSI report based on/in response to the second scheduled timingoverlapping with the second timing/time duration.

In an example, the first CSI report configuration parameters maycomprise a first reportSlotConfig parameter indicating a firstperiodicity and slot offset wherein the first scheduled timing of thefirst CSI report may be based on the first periodicity and slot offset.In an example, the first scheduled timing may further be based on asubcarrier spacing (SCS) configuration of an active uplink bandwidthpart (e.g., an active uplink bandwidth part of the first cell)configured with PUCCH resources. In an example, the wireless device maydetermine the first scheduled timing based on the first periodicity andslot offset and/or the SCS configuration. In an example, the secondscheduled timing of the second CSI report may be based on the firstperiodicity and slot offset indicated by the first reportSlotConfigparameter. In an example, the second scheduled timing may further bebased on a subcarrier spacing (SCS) configuration of an active uplinkbandwidth part (e.g., an active uplink bandwidth part of the first cellor an active bandwidth part of the second cell) configured with PUCCHresources. In an example, the wireless device may determine the secondscheduled timing based on the first periodicity and slot offset and/orthe SCS configuration.

In an example, the first scheduled timing may be in one or more firstsymbols of a first slot of the first cell (e.g., an active uplinkbandwidth part of the first cell). The second scheduled timing may be inone or more second symbols of a second slot (e.g., an active uplinkbandwidth part of e.g., the second cell).

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are periodic CSI reports.

In an example, the first CSI report configuration parameters comprise afirst report config type parameter indicating that the CSI reports aresemi-persistent (SP) CSI reports. The wireless device may receive anactivation command (e.g., SP CSI reporting on PUCCHActivation/Deactivation MAC) indicating activation of the CSI reportconfiguration.

In an example, the transmitting the first CSI report may be based on/viafirst PUCCH resources of the first cell. The transmitting the second CSIreport may be based on/via second PUCCH resources of the second cell.

In an example, the transmitting the first CSI report via the first cellmay be based on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). The transmitting the second CSI reportvia the second cell (e.g., in the second scheduled timing) may be basedon the second CSI report configuration parameters. In an example, thesecond CSI report configuration parameters may comprise a secondreportSlotConfig parameter indicating a second periodicity and slotoffset. The second scheduled timing of the second CSI report may bebased on the second periodicity and slot offset. In an example, thesecond scheduled timing may further be based on a subcarrier spacing(SCS) configuration of an active uplink bandwidth part (e.g., an activeuplink bandwidth part of the second cell) configured with PUCCHresources. In an example, the wireless device may determine the secondscheduled timing based on the second periodicity and slot offset and/orthe SCS configuration. In an example, the transmitting the second CSIreport via the second cell (e.g., in the second scheduled timing) may bebased on one or more configuration parameter of the second CSI reportconfiguration parameters having same values as correspondingconfiguration parameter of the first CSI report configurationparameters. In an example, the one or more configuration parameters maycomprise a carrier information element (IE) indicating a serving cellindex of a first serving cell comprising CSI resources/reference signalsfor channel measurement. In an example, the one or more configurationparameters may comprise an identifier a CSI resource configuration ofthe CSI resources/reference signals.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The first CSI reportconfiguration parameters may be of first CSI report configuration fortransmission of CSI reports via a first cell (e.g., via PUCCH resourcesof a first cell). The timing pattern may indicate a first timing/timeduration that the first cell is a physical uplink control channel(PUCCH) cell and a second timing/time duration that a second cell is thePUCCH cell. The wireless device may transmit a first CSI report, via thefirst cell, in a first scheduled timing of the first CSI report basedon/in response to the first scheduled timing overlapping with the firsttiming/time duration. The wireless device may drop a second CSI reportbased on/in response to a second scheduled timing of the second CSIreport overlapping with the second timing/time duration.

In an example, the first CSI report configuration parameters maycomprise a first reportSlotConfig parameter indicating a firstperiodicity and slot offset wherein the first scheduled timing of thefirst CSI report may be based on the first periodicity and slot offset.In an example, the first scheduled timing may further be based on asubcarrier spacing (SCS) configuration of an active uplink bandwidthpart (e.g., an active uplink bandwidth part of the first cell)configured with PUCCH resources. In an example, the wireless device maydetermine the first scheduled timing based on the first periodicity andslot offset and/or the SCS configuration. In an example, the secondscheduled timing of the second CSI report may be based on the firstperiodicity and slot offset indicated by the first reportSlotConfigparameter. In an example, the second scheduled timing may further bebased on a subcarrier spacing (SCS) configuration of an active uplinkbandwidth part (e.g., an active uplink bandwidth part of the first cellor an active bandwidth part of the second cell) configured with PUCCHresources. In an example, the wireless device may determine the secondscheduled timing based on the first periodicity and slot offset and/orthe SCS configuration.

In an example, the first scheduled timing may be in one or more firstsymbols of a first slot of the first cell (e.g., an active uplinkbandwidth part of the first cell). The second scheduled timing may be inone or more second symbols of a second slot of the second cell (e.g., anactive uplink bandwidth part of the second cell).

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are periodic CSI reports.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are semi-persistent (SP) CSI reports. In an example, thewireless device may receive an activation command (e.g., SP CSIreporting on PUCCH Activation/Deactivation MAC CE) indicating activationof the CSI report configuration.

In an example, transmitting the first CSI report may be based on/viaPUCCH resources of the first cell.

In an example, the transmitting the first CSI report via the first cellmay be based on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). The dropping the second CSI report may bebased on one or more configuration parameter of the second CSI reportconfiguration parameters having different values from correspondingconfiguration parameter of the first CSI report configurationparameters. In an example, the one or more configuration parameters maycomprise a carrier information element (IE) indicating a serving cellindex of a first serving cell comprising CSI resources/reference signalsfor channel measurement. In an example, the one or more configurationparameters may comprise an identifier a CSI resource configuration ofthe CSI resources/reference signals.

In an example embodiment, the wireless device may receive first channelstate information (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The first CSI reportconfiguration parameters may be of a first CSI report configuration fortransmission of CSI reports via a first cell (e.g., via PUCCH resourcesof a first cell). The timing pattern may indicate a first timing/timeduration that the first cell is a physical uplink control channel(PUCCH) cell and a second timing/time duration that a second cell is thePUCCH cell. The wireless device may transmit a first CSI report, via thefirst cell, in a first scheduled timing of the first CSI report basedon/in response to the first scheduled timing overlapping with the firsttiming/time duration. The wireless device may suspend CSI reportingduring the second timing/time duration.

In an example, the first CSI report configuration parameters maycomprise a first reportSlotConfig parameter indicating a firstperiodicity and slot offset wherein the first scheduled timing of thefirst CSI report may be based on the first periodicity and slot offset.In an example, the first scheduled timing may further be based on asubcarrier spacing (SCS) configuration of an active uplink bandwidthpart (e.g., an active uplink bandwidth part of the first cell)configured with PUCCH resources. In an example, the wireless device maydetermine the first scheduled timing based on the first periodicity andslot offset and/or the SCS configuration.

In an example, the first CSI report configuration parameters maycomprise a first report config type parameter indicating that the CSIreports are periodic CSI reports.

In an example, the first CSI report configuration parameters comprise afirst report config type parameter indicating that the CSI reports aresemi-persistent (SP) CSI reports. In an example, the wireless device mayreceive an activation command (e.g., SP CSI reporting on PUCCHActivation/Deactivation MAC CE) indicating activation of the CSI reportconfiguration.

In an example, transmitting the first CSI report may be based on/viaPUCCH resources of the first cell.

In an example, the transmitting the first CSI report via the first cellmay be based on the first CSI report configuration parameters.

In an example, the wireless device may receive second CSI reportconfiguration parameters of a second CSI report configuration fortransmission of CSI reports via the second cell (e.g., via PUCCHresources of the second cell). The suspending the CSI reporting may bebased on one or more configuration parameter of the second CSI reportconfiguration parameters having different values from correspondingconfiguration parameter of the first CSI report configurationparameters. In an example, the one or more configuration parameters maycomprise a carrier information element (IE) indicating a serving cellindex of a first serving cell comprising CSI resources/reference signalsfor channel measurement. In an example, the one or more configurationparameters comprise an identifier a CSI resource configuration of theCSI resources/reference signals.

In an example embodiment, a wireless device may receive channel stateinformation (CSI) report configuration parameters of a CSI reportconfiguration and at least one configuration parameter of a timingpattern. The CSI report configuration parameters may be for transmissionof semi-persistent (SP) CSI reports. The timing pattern may indicatetimings that each of a plurality of cells is a physical uplink controlchannel (PUCCH) cell. The wireless device may receive, via a downlinkshared channel, a transport block comprising an activation commandindicating activation of the CSI report configuration. The wirelessdevice may determine a timing of a first slot based on a subcarrierspacing configuration for a PUCCH of a cell, in the plurality of cells,that is the PUCCH cell at the time that the transport block is received.Transmission of the SP CSI reports may be after the first slot.

In an example, the CSI configuration parameters may comprise a reportconfig type parameter indicating that the CSI report configuration isfor transmission of SP CSI reports.

In an example, the activation command may be based on a SP CSI reportingon PUCCH Activation/Deactivation MAC CE.

In an example, the wireless device may transmit the SP CSI reports afterthe first slot.

In an example, transmitting a SP CSI report, in the SP CSI reports, maybe based PUCCH resources of a cell in the plurality of cells.

In an example, the CSI report configuration parameters may comprise areportSlotConfig parameter indicating a periodicity and slot offset. Thetimings of the SP CSI reports may be (e.g., may be determined) based onthe periodicity and slot offset.

In an example embodiment, a wireless device may receive channel stateinformation (CSI) report configuration parameters of a CSI reportconfiguration and at least one configuration parameter of a timingpattern. The CSI report configuration parameters may be for transmissionof semi-persistent (SP) CSI reports. The timing pattern may indicatetimings that each of a plurality of cells is a physical uplink controlchannel (PUCCH) cell. The wireless device may receive, via a downlinkshared channel, a transport block comprising an activation commandindicating activation of the CSI report configuration. The wirelessdevice may determine a timing of a first slot based on a subcarrierspacing configuration for the PUCCH of a cell, in the plurality ofcells, that is the PUCCH cell at the time that an acknowledgementassociated with the transport block is transmitted. Transmission of theSP CSI reports may be after the first slot.

In an example, the CSI configuration parameters may comprise a reportconfig type parameter indicating that the CSI report configuration isfor transmission of SP CSI reports.

In an example, the activation command may be based on a SP CSI reportingon PUCCH Activation/Deactivation MAC CE.

In an example, the wireless device may transmit the SP CSI reports afterthe first slot.

In an example, transmitting a SP CSI report, in the SP CSI reports, maybe based PUCCH resources of a cell in the plurality of cells.

In an example, the CSI report configuration parameters may comprise areportSlotConfig parameter indicating a periodicity and slot offset. Thetimings of the SP CSI reports may be (e.g., may be determined) based onthe periodicity and slot offset.

In an example embodiment, a wireless device may receive channel stateinformation (CSI) report configuration parameters of a CSI reportconfiguration and at least one configuration parameter of a timingpattern. The CSI report configuration parameters may be for transmissionof semi-persistent (SP) CSI reports. The timing pattern may indicatetimings that each of a plurality of cells is a physical uplink controlchannel (PUCCH) cell. The wireless device may receive, via a downlinkshared channel, a transport block comprising an activation commandindicating activation of the CSI report configuration. The wirelessdevice may determine a timing of a first slot based on a subcarrierspacing configuration for the PUCCH of a primary cell (PCell)/primarysecondary cell (PSCell)/PUCCH SCell/a reference cell. Transmission ofthe SP CSI reports may be after the first slot.

In an example, the CSI configuration parameters may comprise a reportconfig type parameter indicating that the CSI report configuration isfor transmission of SP CSI reports.

In an example, the activation command may be based on a SP CSI reportingon PUCCH Activation/Deactivation MAC CE.

In an example, the wireless device may transmit the SP CSI reports afterthe first slot.

In an example, transmitting a SP CSI report, in the SP CSI reports, maybe based PUCCH resources of a cell in the plurality of cells.

In an example, the CSI report configuration parameters may comprise areportSlotConfig parameter indicating a periodicity and slot offset. Thetimings of the SP CSI reports may be (e.g., may be determined) based onthe periodicity and slot offset.

In an example embodiment, a wireless device may receive channel stateinformation (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The CSI reportconfiguration parameters may be of a CSI report configuration fortransmission of CSI reports. The timing pattern may indicate timingsthat each of a plurality of cells is a physical uplink control channel(PUCCH) cell. The wireless device may determine a timing of a CSIreports based on a subcarrier spacing configuration of a first cell inthe plurality of cells. The wireless device may transmit the CSI reportin the determined timing.

In an example, the first cell may be the cell via which the CSI reportis scheduled to be transmitted.

In an example, the first cell is a primary cell (PCell) or a primarysecondary cell (PSCell) or a PUCCH SCell or a reference cell.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The first CSI reportconfiguration parameters may be of a first CSI report configurations fortransmission of CSI reports via a first cell (e.g., via PUCCH resourcesof a first cell). The timing pattern may indicate timings that each of aplurality of cells, comprising the first cell and a second cell, is aphysical uplink control channel (PUCCH) cell. Based on a first scheduledtiming of a first CSI report being while the first cell is the PUCCHcell, the wireless device may perform channel measurements based on thefirst CSI report configuration regardless of whether the first cell isthe PUCCH cell or the second cell is the PUCCH cell when performing thechannel measurements. The wireless device may transmit the first CSIreport.

In an example embodiment, a wireless device may receive first channelstate information (CSI) report configuration parameters and at least oneconfiguration parameter of a timing pattern. The first CSI reportconfiguration parameters may be of a first CSI report configurations fortransmission of CSI reports via a first cell (e.g., via PUCCH resourcesof a first cell). The timing pattern may indicate timings that each of aplurality of cells, comprising the first cell and a second cell, is aphysical uplink control channel (PUCCH) cell. A first scheduled timingof a first CSI report may be while the first cell is the PUCCH cell. Thewireless device may perform channel measurements based on the first CSIreport configuration while the second cell is a PUCCH cell. The wirelessdevice may transmit the first CSI report.

In an example embodiment as shown in FIG. 36 , a wireless device mayreceive one or more messages (e.g., one or more RRC messages) comprisingconfiguration parameters. The wireless device may be configured with aplurality of cells comprising a first cell and a second cell. Theconfiguration parameters may comprise first configuration parameters ofthe first cell and the second cell. In an example, the plurality ofcells may be provided by one base station (e.g., in case of a carrieraggregation scenario). In an example, the plurality of cells may beprovided by a plurality of base stations (e.g., a first base station anda second base station in case of dual connectivity).

The plurality of cells configured for the wireless device may be groupedinto one or more PUCCH groups. The first cell and the second cell may bein the same PUCCH group, e.g., in a primary PUCCH group or in asecondary PUCCH group. In case of the primary PUCCH group, the firstcell may be a primary cell and the second cell may be a PUCCH switchingsecondary cell that is configured on top of the primary cell for PUCCHtransmission in the primary PUCCH group (e.g., for transmission of UCIassociated with the cells within the primary PUCCH group). In case ofthe secondary PUCCH group, the first cell may be a PUCCH secondary cell(PUCCH SCell) and the second cell may be a PUCCH switching secondarycell that is configured on top of the PUCCH SCell for PUCCH transmissionin the secondary PUCCH group (e.g., for transmission of UCI associatedwith the cells within the secondary PUCCH group). In an example, theconfiguration parameters may comprise a parameter indicating that thesecond cell is a PUCCH switching secondary cell, e.g., an alternativePUCCH cell for PUCCH cell switching in the primary PUCCH group (e.g., incase the first cell and the second cell are in the primary PUCCH group)or the secondary PUCCH group (e.g., in case the first cell and thesecond cell are in a secondary PUCCH group). For example, the first celland the second cell may be in a primary PUCCH group, the first cell maybe the primary cell and the second cell may be a PUCCH switchingsecondary cell and configured on top of primary cell in the primaryPUCCH group for PUCCH transmission. For example, the first cell and thesecond cell may be in a secondary PUCCH group, the first cell may be aPUCCH SCell and the second cell may be a PUCCH switching secondary celland may be configured on top of the PUCCH SCell in the secondary PUCCHgroup for PUCCH transmission.

The configuration parameters may further comprise CSI reportconfiguration parameters for CSI reporting via the first cell (e.g., viaPUCCH resources of the first cell). For example, an IE CSI-ReportConfigmay be used to configure CSI reporting (e.g., periodic orsemi-persistent CSI reporting) on PUCCH of the first cell. In case ofsemi-persistent CSI reporting, the wireless device may further receive aMAC CE indicating activation of CSI reporting via PUCCH of the firstcell and the wireless device may transmit CSI reports semi-persistentlyin response to receiving the MAC CE and based on a configuredperiodicity. In case of periodic CSI reporting, the wireless device maytransmit periodic CSI reports based on a configured periodicity. Theconfiguration parameters may comprise a second configuration parameterthat indicates a cell switching pattern, e.g., a time domain patternindicating first timings that the first cell is an applicable PUCCH cellfor PUCCH transmission and second timings that the second cell is theapplicable PUCCH cell for PUCCH transmission. The wireless device maydetermine the first timings and the second timings based on the secondconfiguration parameter. The wireless device may determine the firsttimings and the second timings based on a reference numerology (e.g., areference subcarrier spacing or a reference slot duration), e.g., areference numerology associated with a reference cell. For example, thereference cell may be the first cell (e.g., the primary cell in case thefirst cell and the second cell are in the primary PUCCH group or thePUCCH SCell in case the first cell and the second cell are in thesecondary PUCCH group).

The wireless device may determine a first report timing of a firstscheduled CSI report via the first cell and a second report timing of asecond scheduled CSI report via the first cell. The first report timingand the second report timing may be and/or the wireless device maydetermine the first report timing and the second report timing based onthe CSI report configuration parameters. For example, the CSI reportconfiguration parameters may comprise a parameter indicating aperiodicity and slot offset. The first report timing and the secondreport timing may be and/or the wireless device may determine the firstreport timing and the second report timing based on the periodicity andslot offset. The wireless device may determine the first report timingand the second report timing based on a numerology (e.g., subcarrierspacing or slot duration) associated with an active BWP (e.g., activeuplink BWP) of the first cell. The first report timing may be within thefirst timings (e.g., within the timings that first cell is theapplicable PUCCH cell for PUCCH transmission) and the second reporttiming may be within the second timings (e.g., within the timings thatthe second cell is the applicable cell for PUCCH transmission). Thewireless device may transmit the first scheduled CSI report via thefirst cell. The wireless device may transmit the first scheduled CSIreport based on the first report timing being within the first timingthat the first cell is the applicable cell for PUCCH transmission. Thewireless device may drop (e.g., may not transmit/may cancel transmissionof) the second scheduled CSI report. The wireless device may drop thesecond scheduled CSI report based on the second report timing beingwithin the second timings that the second cell is the applicable PUCCHcell for PUCCH transmission and the first cell is not the applicablePUCCH cell for PUCCH transmission.

In accordance with various exemplary embodiments in the presentdisclosure, a device (e.g., a wireless device, a base station and/oralike) may include one or more processors and may include memory thatmay store instructions. The instructions, when executed by the one ormore processors, cause the device to perform actions as illustrated inthe accompanying drawings and described in the specification. The orderof events or actions, as shown in a flow chart of this disclosure, mayoccur and/or may be performed in any logically coherent order. In someexamples, at least two of the events or actions shown may occur or maybe performed at least in part simultaneously and/or in parallel. In someexamples, one or more additional events or actions may occur or may beperformed prior to, after, or in between the events or actions shown inthe flow charts of the present disclosure.

FIG. 37 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 3710, a wirelessdevice may receive: first configuration parameters of a first cell and asecond cell; channel state information (CSI) report configurationparameters for CSI reports via the first cell; and a secondconfiguration parameter indicating first timings that the first cell isan applicable physical uplink control channel (PUCCH) cell for PUCCHtransmission and second timings that the second cell is the applicablePUCCH cell for PUCCH transmission. At 3720, the wireless device maydetermine that: a first report timing of a first scheduled CSI reportvia the first cell is within the first timings; and a second reporttiming of a second scheduled CSI report via the first cell is within thesecond timings. At 3730, the wireless device may transmit the firstscheduled CSI report and may drop the second scheduled CSI report.

In an example embodiment, the CSI report configuration parameters,received at 3710, may be for periodic CSI reports or semi-persistent CSIreports. In an example embodiment, the wireless device may receive amedium access control (MAC) control element (CE) indicating activationof a semi-persistent CSI configuration. In an example embodiment, atleast one of the first CSI report and the second CSI report may be basedon the semi-persistent CSI configuration.

In an example embodiment, the CSI report configuration parameters,received at 3710, may be for transmission of CSI reports via a PUCCH ofthe first cell.

In an example embodiment, the second configuration parameter, receive at3710, may indicate a cell switching pattern for PUCCH transmission. Inan example embodiment, the cell switching pattern may be a time-domainpattern.

In an example embodiment, the first report timing and the second reporttiming may be based on the CSI report configuration parameters. In anexample embodiment, the CSI report configuration parameters comprise aparameter indicating a periodicity and slot offset. The first reporttiming and the second report timing may be based on the periodicity andslot offset.

In an example embodiment, the first report timing and the second reporttiming may be based on a subcarrier spacing of an active bandwidth partof the first cell.

In an example embodiment, the first timings and the second timings maybe based on a reference subcarrier spacing. In an example embodiment,the reference subcarrier spacing may be a first subcarrier spacingassociated with the first cell.

In an example embodiment, the first cell and the second cell may be inthe same PUCCH group. In an example embodiment, the PUCCH group may be aprimary PUCCH group or a secondary PUCCH group.

FIG. 38 shows an example flow diagram in accordance with several ofvarious embodiments of the present disclosure. At 3810, a wirelessdevice may determine: first timings that a first cell is an applicablecell for physical uplink control channel (PUCCH) transmission; andsecond timings that a second cell is the applicable cell for PUCCHtransmission. At 3820, the wireless device may transmit a first channelstate information (CSI) report in a first report timing via the firstcell based on the first report timing being within the first timings. At3830, the wireless device may drop a second scheduled CSI report,scheduled for transmission in a second report timing via the first cell,based on the second report timing being within the second timings.

In an example embodiment, the wireless device may receive aconfiguration parameter, wherein the determining may be based on theconfiguration parameter. In an example embodiment, the configurationparameter may indicate a cell switching pattern for PUCCH transmission.

In an example embodiment, the wireless device may receive CSI reportconfiguration parameters for CSI reports via the first cell.

Various exemplary embodiments of the disclosed technology are presentedas example implementations and/or practices of the disclosed technology.The exemplary embodiments disclosed herein are not intended to limit thescope. Persons of ordinary skill in the art will appreciate that variouschanges can be made to the disclosed embodiments without departure fromthe scope. After studying the exemplary embodiments of the disclosedtechnology, alternative aspects, features and/or embodiments will becomeapparent to one of ordinary skill in the art. Without departing from thescope, various elements or features from the exemplary embodiments maybe combined to create additional embodiments. The exemplary embodimentsare described with reference to the drawings. The figures and theflowcharts that demonstrate the benefits and/or functions of variousaspects of the disclosed technology are presented for illustrationpurposes only. The disclosed technology can be flexibly configuredand/or reconfigured such that one or more elements of the disclosedembodiments may be employed in alternative ways. For example, an elementmay be optionally used in some embodiments or the order of actionslisted in a flowchart may be changed without departure from the scope.

An example embodiment of the disclosed technology may be configured tobe performed when deemed necessary, for example, based on one or moreconditions in a wireless device, a base station, a radio and/or corenetwork configuration, a combination thereof and/or alike. For example,an example embodiment may be performed when the one or more conditionsare met. Example one or more conditions may be one or moreconfigurations of the wireless device and/or base station, traffic loadand/or type, service type, battery power, a combination of thereofand/or alike. In some scenarios and based on the one or more conditions,one or more features of an example embodiment may be implementedselectively.

In this disclosure, the articles “a” and “an” used before a group of oneor more words are to be understood as “at least one” or “one or more” ofwhat the group of the one or more words indicate. The use of the term“may” before a phrase is to be understood as indicating that the phraseis an example of one of a plurality of useful alternatives that may beemployed in an embodiment in this disclosure.

In this disclosure, an element may be described using the terms“comprises”, “includes” or “consists of” in combination with a list ofone or more components. Using the terms “comprises” or “includes”indicates that the one or more components are not an exhaustive list forthe description of the element and do not exclude components other thanthe one or more components. Using the term “consists of” indicates thatthe one or more components is a complete list for description of theelement. In this disclosure, the term “based on” is intended to mean“based at least in part on”. The term “based on” is not intended to mean“based only on”. In this disclosure, the term “and/or” used in a list ofelements indicates any possible combination of the listed elements. Forexample, “X, Y, and/or Z” indicates X; Y; Z; X and Y; X and Z; Y and Z;or X, Y, and Z.

Some elements in this disclosure may be described by using the term“may” in combination with a plurality of features. For brevity and easeof description, this disclosure may not include all possiblepermutations of the plurality of features. By using the term “may” incombination with the plurality of features, it is to be understood thatall permutations of the plurality of features are being disclosed. Forexample, by using the term “may” for description of an element with fourpossible features, the element is being described for all fifteenpermutations of the four possible features. The fifteen permutationsinclude one permutation with all four possible features, fourpermutations with any three features of the four possible features, sixpermutations with any two features of the four possible features andfour permutations with any one feature of the four possible features.

Although mathematically a set may be an empty set, the term set used inthis disclosure is a nonempty set. Set B is a subset of set A if everyelement of set B is in set A. Although mathematically a set has an emptysubset, a subset of a set is to be interpreted as a non-empty subset inthis disclosure. For example, for set A={subcarrier1, subcarrier2}, thesubsets are {subcarrier1}, {subcarrier2} and {subcarrier1, subcarrier2}.

In this disclosure, the phrase “based on” may be used equally with“based at least on” and what follows “based on” or “based at least on”indicates an example of one of plurality of useful alternatives that maybe used in an embodiment in this disclosure. The phrase “in response to”may be used equally with “in response at least to” and what follows “inresponse to” or “in response at least to” indicates an example of one ofplurality of useful alternatives that may be used in an embodiment inthis disclosure. The phrase “depending on” may be used equally with“depending at least on” and what follows “depending on” or “depending atleast on” indicates an example of one of plurality of usefulalternatives that may be used in an embodiment in this disclosure. Thephrases “employing” and “using” and “employing at least” and “using atleast” may be used equally in this in this disclosure and what follows“employing” or “using” or “employing at least” or “using at least”indicates an example of one of plurality of useful alternatives that maybe used in an embodiment in this disclosure.

The example embodiments disclosed in this disclosure may be implementedusing a modular architecture comprising a plurality of modules. A modulemay be defined in terms of one or more functions and may be connected toone or more other elements and/or modules. A module may be implementedin hardware, software, firmware, one or more biological elements (e.g.,an organic computing device and/or a neurocomputer) and/or a combinationthereof and/or alike. Example implementations of a module may be assoftware code configured to be executed by hardware and/or a modelingand simulation program that may be coupled with hardware. In an example,a module may be implemented using general-purpose or special-purposeprocessors, digital signal processors (DSPs), microprocessors,microcontrollers, application-specific integrated circuits (ASICs),programmable logic devices (PLDs) and/or alike. The hardware may beprogrammed using machine language, assembly language, high-levellanguage (e.g., Python, FORTRAN, C, C++ or the like) and/or alike. In anexample, the function of a module may be achieved by using a combinationof the mentioned implementation methods.

What is claimed is:
 1. A method comprising: receiving, by a wirelessdevice: first configuration parameters of a first cell and a secondcell; channel state information (CSI) report configuration parametersfor CSI reports via the first cell; and a second configuration parameterof a time domain pattern indicating first timings that the first cell isthe physical uplink control channel (PUCCH) cell for PUCCH transmissionand second timings that the second cell is the PUCCH cell for PUCCHtransmission; transmitting a first CSI report, scheduled fortransmission via the first cell in a first report timing, based on thefirst report timing being within the first timings; and dropping asecond CSI report, scheduled for transmission via the first cell in asecond report timing, based on the second report timing being within thesecond timings.
 2. The method of claim 1, wherein the CSI reportconfiguration parameters are for periodic CSI reports or semi-persistentCSI reports.
 3. The method of claim 1, wherein the CSI reportconfiguration parameters are for transmission of CSI reports via a PUCCHof the first cell.
 4. The method of claim 1, wherein the time domainpattern indicates a cell switching pattern for PUCCH transmission. 5.The method of claim 1, wherein the first report timing and the secondreport timing are based on the CSI report configuration parameters. 6.The method of claim 1, wherein the first report timing and the secondreport timing are based on a subcarrier spacing of an active bandwidthpart of the first cell.
 7. The method of claim 1, wherein the firsttimings and the second timings are based on a reference subcarrierspacing.
 8. The method of claim 7, wherein the reference subcarrierspacing is a first subcarrier spacing associated with the first cell. 9.The method of claim 1, wherein the first cell and the second cell are inthe same PUCCH group.
 10. The method of claim 9, wherein the PUCCH groupis a primary PUCCH group or a secondary PUCCH group.
 11. A wirelessdevice comprising: one or more processors; and memory storinginstructions that, when executed by the one or more processors, causethe wireless device to: receive: first configuration parameters of afirst cell and a second cell; channel state information (CSI) reportconfiguration parameters for CSI reports via the first cell; and asecond configuration parameter of a time domain pattern indicating firsttimings that the first cell is the physical uplink control channel(PUCCH) cell for PUCCH transmission and second timings that the secondcell is the PUCCH cell for PUCCH transmission; transmit a first CSIreport, scheduled for transmission via the first cell in a first reporttiming, based on the first report timing being within the first timings;and drop a second CSI report, scheduled for transmission via the firstcell in a second report timing, based on the second report timing beingwithin the second timings.
 12. The wireless device of claim 11, whereinthe CSI report configuration parameters are for periodic CSI reports orsemi-persistent CSI reports.
 13. The wireless device of claim 11,wherein the time domain pattern indicates a cell switching pattern forPUCCH transmission.
 14. The wireless device of claim 11, wherein firstreport timing and the second report timing are based on the CSI reportconfiguration parameters.
 15. The wireless device of claim 11, whereinthe first report timing and the second report timing are based on asubcarrier spacing of an active bandwidth part of the first cell. 16.The wireless device of claim 11, wherein the first timings and thesecond timings are based on a reference subcarrier spacing.
 17. Thewireless device of claim 16, wherein the reference subcarrier spacing isa first subcarrier spacing associated with the first cell.
 18. Thewireless device of claim 11, wherein the first cell and the second cellare in the same PUCCH group.
 19. The wireless device of claim 18,wherein the PUCCH group is a primary PUCCH group or a secondary PUCCHgroup.
 20. A system comprising: a base station; and a wireless devicecomprising: one or more processors; and memory storing instructionsthat, when executed by the one or more processors, cause the wirelessdevice to: receive, from the base station, first configurationparameters of a first cell and a second cell; channel state information(CSI) report configuration parameters for CSI reports via the firstcell; and a second configuration parameter of a time domain patternindicating first timings that the first cell is the physical uplinkcontrol channel (PUCCH) cell for PUCCH transmission and second timingsthat the second cell is the PUCCH cell for PUCCH transmission; transmita first CSI report, scheduled for transmission via the first cell in afirst report timing, based on the first report timing being within thefirst timings; and drop a second CSI report, scheduled for transmissionvia the first cell in a second report timing, based on the second reporttiming being within the second timings.